Scientific Method Scenarios – Flashcards

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question
Sarah and Becky are tired of having cold feet while waiting for the school bus to come in the morning. They decide to design an experiment to test the effectiveness of wool, cotton and nylon as insulators. They fill identical bottles with 200 ml of water at 100 C and place inside each sock. They take the temperature of the water after 20 minutes What is the independent variable?
answer
Type of cover
question
Sarah and Becky are tired of having cold feet while waiting for the school bus to come in the morning. They decide to design an experiment to test the effectiveness of wool, cotton and nylon as insulators. They fill identical bottles with 200 ml of water at 100 C and place inside each sock. They take the temperature of the water after 20 minutes What is the dependent variable?
answer
Temperature of water
question
Sarah and Becky are tired of having cold feet while waiting for the school bus to come in the morning. They decide to design an experiment to test the effectiveness of wool, cotton and nylon as insulators. They fill identical bottles with 200 ml of water at 100 C and place inside each sock. They take the temperature of the water after 20 minutes What is a constant?
answer
Same amount of water
question
A group of middle school students were given a short course in speed reading. The instructor was curious if a monetary incentive would influence performance on a reading test taken at the end of the course.Half the students were offered $5 for obtaining a certain level of performance on the test, the other half were not offered money. What is the independent variable?
answer
Whether they were given money or not
question
A group of middle school students were given a short course in speed reading. The instructor was curious if a monetary incentive would influence performance on a reading test taken at the end of the course.Half the students were offered $5 for obtaining a certain level of performance on the test, the other half were not offered money. What is the dependent variable?
answer
Their results in the course
question
A group of middle school students were given a short course in speed reading. The instructor was curious if a monetary incentive would influence performance on a reading test taken at the end of the course.Half the students were offered $5 for obtaining a certain level of performance on the test, the other half were not offered money. What is the hypothesis?
answer
If they are offered money, then they will score better.
question
Brad will grow four flats of eggplants (25 plants/flat) for 5 days. The eggplants will then be fertilized as follows: Flat A: 450 g of 3-month-old fish stick compost Flat B: 450 g of 6-month old fish stick compost Flat C: 450 g of 12 month-old fish stick compost Flat D: 0 g of fish stick compost The eggplants received the same amount of sunlight and water each day. At the end of 30 days the students will record the height of the plants (cm) and then throw a party featuring fish sticks. What is the independent variable?
answer
The age of the compost
question
Brad will grow four flats of eggplants (25 plants/flat) for 5 days. The eggplants will then be fertilized as follows: Flat A: 450 g of 3-month-old fish stick compost Flat B: 450 g of 6-month old fish stick compost Flat C: 450 g of 12 month-old fish stick compost Flat D: 0 g of fish stick compost The eggplants received the same amount of sunlight and water each day. At the end of 30 days the students will record the height of the plants (cm) and then throw a party featuring fish sticks. What is the dependent variable?
answer
height of the plants
question
Brad will grow four flats of eggplants (25 plants/flat) for 5 days. The eggplants will then be fertilized as follows: Flat A: 450 g of 3-month-old fish stick compost Flat B: 450 g of 6-month old fish stick compost Flat C: 450 g of 12 month-old fish stick compost Flat D: 0 g of fish stick compost The eggplants received the same amount of sunlight and water each day. At the end of 30 days the students will record the height of the plants (cm) and then throw a party featuring fish sticks. What are some constants?
answer
Amount of water
question
Ten sunflower seeds were planted in each of 5 pots found around the house that contained 500g of "Pete's Potting Soil." The pots were given the following amounts of distilled water each day for 40 days: Pot #3 received the recommended amount of water. The height of each plant was measured at the end of the experiment. 1. Pot #1: 50mL Pot #2: 100mL Pot #3: 150mL Pot #4: 200mL Pot #5: 250mL What is the independent variable?
answer
Amount of water given
question
Ten sunflower seeds were planted in each of 5 pots found around the house that contained 500g of "Pete's Potting Soil." The pots were given the following amounts of distilled water each day for 40 days: Pot #3 received the recommended amount of water. The height of each plant was measured at the end of the experiment. 1. Pot #1: 50mL Pot #2: 100mL Pot #3: 150mL Pot #4: 200mL Pot #5: 250mL What is the dependent variable?
answer
The height of the plant
question
Ten sunflower seeds were planted in each of 5 pots found around the house that contained 500g of "Pete's Potting Soil." The pots were given the following amounts of distilled water each day for 40 days: Pot #3 received the recommended amount of water. The height of each plant was measured at the end of the experiment. 1. Pot #1: 50mL Pot #2: 100mL Pot #3: 150mL Pot #4: 200mL Pot #5: 250mL What is the control group?
answer
Pot #3
question
Ten sunflower seeds were planted in each of 5 pots found around the house that contained 500g of "Pete's Potting Soil." The pots were given the following amounts of distilled water each day for 40 days: Pot #3 received the recommended amount of water. The height of each plant was measured at the end of the experiment. 1. Pot #1: 50mL Pot #2: 100mL Pot #3: 150mL Pot #4: 200mL Pot #5: 250mL What is a constant?
answer
Amount of Pete's Potting Soil
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