FDSCI 101 – Flashcard

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question
When is an idea considered to be scientifically proven?
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Never
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Which of the following is not a question that could be addressed by science?
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Is it right to use addictive substances as pain relievers in humans.
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Science
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Is not a question of morals
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Which of the following would cause a scientific idea to be rejectef?
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If a preponderance of evidence supports a contrary idea.
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Which of the following best demonstrates behaving scientifically?
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A chemist asks a geologist her opinion on recent findings about the Silicon content of rocks found in dormant volcano.
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In order to determine if mutations can be passed from parent to offspring some scientists want to induce mutations in parents and then examine their children to see if those mutations have been ibherited. Controversy about their methods would be considered ?
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A conflict over ethicality of methods.
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systematic error
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descibes a bias or uncertainty
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statistical error
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random error refers to the inherent variability of a measurement.
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If an idea is testable, which of the following would be true? Mark all that apply.
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It could possibly fall in the realm of science. It would generate specific expectations.
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Why is being part of a community important to science?
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Science is a discovery of anything that is natural.it is important to be a part of a community since research is always being done. A researcher will look for what has been done first and then look for their own answers by asking more questions and testing each outcome. Then they ask other scientists to work on it and verify their research and results. They will also do their own testing. It is important so that the outcome will be based on fact.
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What is science?
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It's a way of analyzing and examining items to see how they work, a way of testing and experimenting with things that may be predictable in nature. Many things are scientific. It's through testing each little thing to see what the outcome will be
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why is Intelligent design neither science or religion?
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Intelligent Design is more the supernatural and is not defined as science. The science checklist tells us that we cannot define God. But in reviewing we find that Intelligent Design doesn't have anything to test against because science cannot define it. Religion is defined as a faith or belief in a higher power which also makes Intelligent Design different than religion because it can be the higher power.
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How are the circle bugs able to follow the line?
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the ink has a smell to it
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How did you verify your answer to the question about circle bugs?
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I watched the video and was thinking about it. The answer I came up with was the same as Dr. Merrill's. The sharpie would dry faster than the ink.
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When an advertisement makes a claim such as "scientifically proved" which of the following would be appropriate responses? Mark all that apply.
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Ask, "What is the source?" Ask, What is the evidence?"
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When evaluating a claim, which of the following is the least important question you should ask?
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Is the claim possible?
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Ice core samples over the last 160,000 years definitively prove that when carbon dioxide levels increase temperatures also increase. Based on this scientific evidence we can conclude that increasing carbon dioxide levels cause increasing temperatures.
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False
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Scientific messages portrayed by media outlets are often misleading or incomplete. Which of the following is not a reason why you should look closely at the source of the information?
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They may be trying to simplify complex research.
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Which of the following is the most reliable source of good information on fitness?
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The journal of strength and fitness.
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Balanced reporting is important in journalism?
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True
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When there is a disagreement on the evidence, it is important to give equal weight to all sides?
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False
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Why is it important to evaluate an expert's credentials when weighing their opinion on a specific topic?
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Expertise in one field doesn't necessarily translate to expertise in another field.
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A disagreement between scientists about how quickly mutations can occur would represent which type of conflict?
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Secondary scientific controversy
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In order to determine if mutations can be passed from parent to offspring some scientists want to induce mutations in parents and then examine their children to see if those mutations have been inherited. Controversy about their methods would be considered ___________.
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a conflict over ethicality of methods.
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There have been multiple ideas and conflicts that have stemmed from the climate change debate. Some groups believe that we should stop burning fossil fuels, others that we should shut down concentrated animal feeding operations (CAFOs) and others believe that we should continue doing what we are doing, but research ways to effectively reduce our carbon footprint. These types of conflicts would be considered __________.
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conflicts over applications
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Why is it important to understand the difference between a primary and secondary scientific conflict? Choose all that apply.
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Primary conflicts involve the foundation of other ideas. If the foundation is wrong then it would affect the other ideas based on that central idea. Someone might try to use a secondary conflict as a way to argue that the fundamental idea is also doubted by scientists.
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You are planning your annual spring break beach vacation and you still have a few months to get "swimsuit" ready. On January 19, 2013 an article in the "U.S. News and World Report" ranked the DASH diet number one overall. You want to lose a few pounds so what should you do? Rank these options from best to worst. (1=best; 4=worst) 1-Evaluate consumer reviews on the DASH diet. 2-Look at the American Heart Association website for information. 3-Look for peer reviewed articles on the effectiveness of the DASH diet. 4- Google how to do the DASH diet and get started! (You don't have any time to waste)
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3,2,1,4
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When deciding when/if you should have a prostate exam (males) or mammogram (women) which of the following sources would be the least biased?
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National Institute of Health (NIH) or Center for Disease Control (CDC)
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Which of the following would be good questions to ask when evaluating scientific evidence? Choose all that apply
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Is the evidence reproducible? What is the opinion of other experts in the field? What was the sample size? Does the data suggest correlation or causation?
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A study was conducted involving 50 white males between the ages of 45-70 who had been admitted to the hospital for a heart attack. They did a blood lipid profile on the participants and found that 70% of them had HDL (a type of cholesterol) levels above 55mg/dl. Which of the following would be a poor next step?
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Recommend that white males age 45-70 should decrease HDL levels.
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There is compelling evidence that foods rich in vitamins, such as beta carotene, decrease the risk of developing cancer. Therefore a good recommendation would be to take vitamins containing beta carotene to decrease the risk of cancer.
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False
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Kraft food wants to test whether their new boxed macaroni and cheese tastes better than Western Family or other generic brands. They hire you to conduct the study here at BYU-Idaho since so much macaroni and cheese is consumed here. You prepare the various brands of macaroni using the same methods and ingredients (milk, butter, etc) and ensure that all samples of macaroni are served at the same temperature. You set up a table in the MC and have samples for 1000 students to taste, labeled Kraft and Western Family, etc. You make sure that none of the students have eaten in the last three hours and then assign them to a group based on chance. After tasting the samples, you have the students rate the macaroni on a scale from one to ten. They do this based on taste, texture, and visual appeal. Which of the following is the biggest problem with this experiment
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They allowed the results to be biased.
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The role of statistics in science is to quantify variability and measure the probability of observing a specific result.
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true
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Smoking cigarettes has been linked to cancer. Which of the following statements is true?
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Smoking cigarettes increases your odds of developing lung cancer. If you smoke cigarettes your risk of developing lung cancer increases by 20 times. *** Both A ; B are true but B is a more precise statement.
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If a variable cannot be removed during an experiment (such as rainfall variations on crop growth) how can researchers know if that variable is causing the observed effect or if the thing they are studying (such as fertilizer) is causing the effect.
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use control groups
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One of the benefits of using descriptive statistics is that it enables you to identify differences between the study participants and other groups.
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True
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What does it mean when a researcher states that that an observed effect or difference is significant with a confidence level of 99%?
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That the observed effect is very unlikely to be the result of chance.
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How can statistics be used in data analysis? Choose all that apply.
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to identify and qualify relationships to measure uncertainty to identify trends to decieve or mislead
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Why is it important to control variables when conducting research?
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To determine the relationship between a specific variable and an observed effect.
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Briefly describe and give your analysis of the study technique(s) that you researched and your evaluation of the evidence to support that technique. Be sure to use at least 50 words in your response.
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Reading your notes after class and do them in your own words making sure you understand them. Also making sure that you get the main points and not all of it. This is something that I need to work on since I always want it all, but if I work on the main points and leave a few lines blank after the point. I can add to it while I still remember it.
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Scientific nethod requires
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1.analysis of data to confirm a theory or alternatively established through
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2 ways to find truth
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1. Analyse and experiment 2 Go to the origin of all truth and ask or act on inspiration.
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A knowledge of truth is
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Of little value unless we apply it in making correct decisions
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Scientific method is
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Experimentation- a valuable way of seeking truth.
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Scientific approach
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More of Heavenly Father's creations to be understood through science method.
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Righteous character is
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What you are becoming and provides foundation of spiritual strengths.
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Religion is... Science is ....
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More personal More tangible.
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Science is described as
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Both a body of knowledge and the process by which that knowledge is obtsined.
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What are the two ways to find truth?
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1. Scientific method 2 go to the origin of truth and ask or respond to inspiration
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Scientific method requires
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Analysis of data to confirm a theory or alternatively establish
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In science we are only able to make use of observations that are made with our own eyes?
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FALSE- Sight,smell, feel and touch
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Science cannot be used to accurately investigate events that happened long ago
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False
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Which of the following statements is most accurate?
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In many cases, extensive study and creativity is necessary to be able to test an idea.
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When testing a hypothesis, one match of actual to expected observations is sufficient.
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false
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Generating expected observations often involves having sufficient background information to understand the hypothesis.
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true
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Which of the following is NOT part of building a scientific argument as the result of testing ideas?
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Making a case for having proven your hypothesis true
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Having well-defined measurement procedures, which are consistently applied, will mostly help with
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avoiding Bias
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In a double-blind test, who knows which participants are in the experimental group and which are in the control group during the experiment? Mark all that apply.
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The researchers who train those interacting with the participants
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When testing the effect of Ginkgo biloba extract on dementia symptoms, how did Le Bars and his colleagues ensure that patients would not show improvement as the psychological effect of receiving treatment?
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They administered a placebo to a control group
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Which of the following are components of fair testing of ideas? Mark all that apply
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Establishing safeguards against human bias Accounting for chance by using sufficiently large sample sizes Comparing an experiment group to a control group Finding ways to keep all variables the same except the ones you're interested in Using statistical analysis to determine the significance of measured deviations
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Which of the following is/are valid reasons for making an assumption? (Mark all that apply.)
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The assumption is tested in a separate experiment at the same time. The assumption has been tested previously by other scientists. The assumption is supported by our current understanding of the principles involved
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In Science, an assumption is
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something we must accept as true without testing.
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It is often trivial to design an experiment where the results depend only on the variable being tested
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False
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Observations are only considered to be in support of a proposed explanation if they exactly match the predicted (or expected) outcomes of that explanation.
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False
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Which of the following best determines the degree to which a set of observations supports a proposed hypothesis?
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Statistical analysis of expected variation in the observations
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Observations that consistently and closely match expectations are a sign of (mark all that apply)
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a well-understood theory. high quality instrumentation. excellent lab technique strong bias or fraud.
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What was Lavoisier's hypothesis?
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That during the course of changing matter from one substance to another, no matter is lost.
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How did Lavoisier's actual results match his expected results?
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He was able to show that, when carefully conducted, no mass is lost during a series of chemical reactions
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In the film, Lavoisier said that the mass gained by the pipe plus the mass of the collected gas "exactly" equaled the lost mass of water. If we believe Lavoisier to have behaved scientifically, how must you interpret that statement?
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All of the above are valid interpretations, although of differing likelihood.
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Rutherford calculated that a gold atom is about 10,000 larger than its nucleus. Thinking about his experiment and its results, how did he come to this conclusion?
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Analyzing the ratio of alpha particles passing through to those reflected back
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What was the result of Rutherford's experiment?
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He learned that the positive charge in an atom is concentrated in a small nucleus
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What was Rutherford's hypothesis
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That the nuclei of atoms are diffuse positive charges.
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The design and execution of an experiment to test an idea is easy, once you understand the idea well enough.
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False
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What were these researchers' expected results?
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As an object approaches zero degrees, the amount of red-shifted reflected light will be more than the amount of blue-shifted reflected light
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Which of the following was necessary for these researchers to be able to make this movie
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An understanding of how atoms and electrons behave
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Was there a scientific purpose for making this movie? If so, what?
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Both of the "yes" statements are correct. which is Yes, to generate curiosity and interest in future scientists. Yes, to show that these researchers understand how atoms and molecules work.
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What electrons are involved in chemical bonding
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The outermost ones
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Why do Lewis structures only represent the valence electrons?
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Those are the electrons invovled in bonding
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All elements must fulfil the _____ rule except for H/He which instead fulfil the _____ rule.
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Octet, Duet
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Polar covalent bonding is the process of unequal sharing of electrons
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...
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Covalent bonding is the process of sharing of electrons between two atoms.
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equal sharing of the bond electrons arise when the electrongativites of the two atoms are equal.
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Which of the following are related to the strength of intermolecular forces in a compound?
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melting point boiling point vapor pressure evaporation viscosity surface tension solubility
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All intermolecular forces arise from attractions between opposing charges.
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True
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If two molecules are identical except that one is the mirror image of the other, then they will have identical properties.
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False
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Mirror images can be overlaid to match exactly
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False
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Sometimes, the finest details of the structure of a molecule are relevant to the function of the molecule
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True
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Paleomagnetic dating
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A type of dating that examines the way magnetic iron particles are oriented in a sample and compares this with known movements of the magnetic North pole over geologic time.
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Correlation
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Finding out the relationship between things. In geology, correlation involves trying to match rocks or fossils of the same age between different locations.
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Dinoflagellate
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Microscopic single-cell organism that lives in freshwater and seawater.
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Radioisotope
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An atom with an unstable nucleus. The excess energy associated with the nucleus is released when the nucleus undergoes radioactive decay.
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Fission track dating
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A method of dating that counts microscopic traces left in crystals by the radioactive decay of uranium.
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Relative dating
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The foundation for early geology Based on the assumption that the oldest layers of rock will be found underneath younger layers Based on paleontology Supported by absolute dating methods
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Eon
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The longest division of geologic time consisting of two or more eras. For example, the phanerozouc eon consists of three eras- the paleozoic, mesozoic, and cenozoic
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Epoch
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A division of geological time less tgan a period, but greater tgan an age.
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Absolute dating methods include
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Paleornmagnetic reversals Fission track dating Measuring radioactive isotopes
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Boundaries between geological periods are usually determined by a major shift in ancient sediment composition between rock layers.
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False
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Which other major scientific theory provides the basis for relative dating?
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Evolution
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Paleozoic
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Ancient life
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Mesozoic
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Middle life
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Cenozoic
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New life
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There were two main theories to explain how seashells got on top of mountains. One stated that they were deposited there by rising sea levels. What is one of the biggest problems with this theory?
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There was no explanation for where the water went during times of low sea levels.
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Lyell is considered by many to be the father of modern geology despite many shortfalls including: 1. He could not explain how mountains formed. 2. He rejected the idea of ice ages. 3. He believed mammals existed since the beginning of life. 4. He rejected the idea of sudden extinction of animal or plants. If he was wrong on so many key points why was he considered the father of modern geology?
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He was good at explaining his ideas.
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Why was Playfair, a mathematician and not a geologist, so influential in shaping geological theory?
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He was a friend of and studied with Hutton, who was a brilliant geologist. His writings were read and understood by Lyell. He explained to others ideas that Hutton failed to communicate effectively
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Which of the following is the most likely reason for the rapid advancement of geology from the late 1700s to the mid-1800s?
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Increase in membership in the geologic community
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When trying to calculate the age of the earth Edmond Halley came up with an experiment that would give a rough idea of the earth's age. He believed the salt in the ocean came from deposits from erosion of land. Therefore if you divide the total amount of salt in the ocean by the total amount deposited each year you would know the age of the earth. What was the problem with his experiment?
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He could not calculate how much salt was in the ocean.
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Initially Kelvin suggested the earth was 98 million years old (but maybe only 20 million or as much as 400 million). Why did he later revise the earth's age to not more than 24 million years old when most geologists, including Darwin, believed the earth to be hundreds of millions of years old?
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Physics showed that the sun could not burn for longer than that.
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The majority of scientific work is done by individual scientists in isolation.
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False
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Which of the following is one of the benefits of diversity in the scientific community?
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Helps control bias that may emerge.
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What is a necessary aspect of being a part of the scientific community?
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Subjecting your work to evaluation by others
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A good scientist is objective and never shows bias.
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False
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How can we ensure that only ideas supported by evidence and based on sound reasoning are accepted?
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Collaborating to replicate the results of others Scrutinizing the work of others Subjecting our own work to the scrutiny of others.
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Which of the following methods were used to determine the age of the Mangahouanga fossils?
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Fossil correlation with dinoflagelletes Relative dating by comparing rock layers.
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Why do we have many more fossils of marine life than terrestrial life?
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Fossil formation works best in aquatic sediments
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What is the significance of the discovery of hornblende crystals in ring of fire volcanoes?
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It indicates the presence of water in the magma
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How did scientists discover the source of water that is deep below the earth's crust around the ring of fire?
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They analyzed gas samples from the volcanoes.
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Suppose you discovered that there was oceanic sediment in the magma of the ring of fire volcanoes but you lived at the time of Alfred Wegener. How would his hypothesis on plate movement help explain your discovery?
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It would help provide a mechanism for moving ocean sediment under the volcanoes
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What makes the ring of fire volcanoes erupt so explosively? Mark all that apply
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Their magma is thicker Their magma contains silica Their magma traps in gas and increases pressure
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How does earthquake activity around the ring of fire give further evidence of subduction?
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The further inland you go the deeper the source of the earthquakes.
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What is the evidence for plate motion? Mark all that apply
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earthquake location Tsunamis Deep ocean trenches GPS tracking
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Based on your understanding of subduction which of the following would you expect to be older?
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the constal
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What is the significance of mid-ocean ridges?
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That is where new crust material is created
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According to the video, what is the force that drives the movement of the plates? (This is actually only one part of the equation. The other forces that drive plate motion will be discussed in class.)
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Convection currents
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What is the Church's official position on the theory of evolution?
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The Church neither endorses nor denies the theories of science, including the theory of evolution
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What are acceptable interpretations of the Church's official statement on evolution? (check all that apply.)
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We are free to study scientific theories, including the theory of evolution Our exaltation is not directly affected by knowledge of scientific theories like the theory of evolution The Church's official position on the theory of evolution is neither for nor against it
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How did Brigham Young feel about statements from scientists on geologic time
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He said he didn't care
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What is the best definition for biological evolution?
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Changes in the allele frequencies of a population over time
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Evolution acts on the level of the individual
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False
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Natural selection acts on the level of the individual
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True
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Natural selection is random (Bedbugs)
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False
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Mutations are random (Bedbugs)
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True
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Sometimes two different species can successfully mate, but produce offspring different to either parent (e.g. a horse and donkey can mate to produce a mule). These offspring are called:
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Hybrids
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How do scientists judge two organisms to be the same species?
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They can successfully breed
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There are examples of organisms that have speciated during the course of human history.
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True
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Why is microevolution so much more attractive to opponents of evolutionary theory than macroevolution?
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Microevolution is visible in the short term People think microevolution means only a change in allele frequency (no speciation There is a large volume of evidence for microevolution It is difficult for people to see macroevolution because of the very long time scale (all of the above)
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What aspect of plate tectonics is least understood and requires further research?
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The driving mechanism (what causes plates to start moving one direction and then stop or change directions)
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How many different disciplines had to come together before the full understanding of the theory of plate tectonics could be realized?
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Paleomagnetics Seismology Oceanography Structural geology Geography Paleontology
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