review of science glossary (size 10) – Flashcards
302 test answers
Unlock all answers in this set
Unlock answers 302question
refers to the total number of protons and neutrons in the nucleus of an atom
answer
atomic mass
Unlock the answer
question
a pair of stars that exist together; they appear as one star when seen from earth
answer
binary stars
Unlock the answer
question
is the property of a material to be easily broken into pieces
answer
brittleness
Unlock the answer
question
is heating the food and sealing it in a sterile airtight container
answer
canning
Unlock the answer
question
the basic structural and functional unit of all living things
answer
cell
Unlock the answer
question
an outward force that pulls an object away from the center of rotation
answer
centrifugal force
Unlock the answer
question
an inward force that keeps an object moving in a circle
answer
centripetal force
Unlock the answer
question
the part of the brain which controls all voluntary muscular movements
answer
cerebellum
Unlock the answer
question
the part of the brain which controls all conscious and thinking activities
answer
cerebrum
Unlock the answer
question
is an attractive force that holds atoms and ions together
answer
chemical bond
Unlock the answer
question
is the energy stored in matter due to the arrangement of atoms in the molecules of substances
answer
chemical energy
Unlock the answer
question
is adding chemicals to food to enhance flavor, provide color, improve nutrition, protect food against microorganisms and oxygen and to adjust acidity or tartness
answer
chemical preservation
Unlock the answer
question
is the branch of science that studies matter, its composition and the changes it undergoes under different conditions
answer
chemistry
Unlock the answer
question
the flow of nutritive fluids, gases waste materials and water in the body
answer
circulation
Unlock the answer
question
the clashing of 2 bodies in a certain place or space
answer
collision
Unlock the answer
question
a material composed of two or more elements that are chemical combined in definite proportions
answer
compound
Unlock the answer
question
is the movement of energy from a source to an object by direct contact between them
answer
conduction
Unlock the answer
question
groups of stars that form patterns
answer
constellations
Unlock the answer
question
the crusts on which the continents are located
answer
continental plates
Unlock the answer
question
is the transfer of heat energy when a large mass of liquid or gas with a different temperature moves from one place to another.
answer
convection
Unlock the answer
question
the innermost part of the earth, believed to be consisting of molten iron.
answer
core
Unlock the answer
question
is sharing electrons between two atoms
answer
covalent bond
Unlock the answer
question
the outer layer of the earth on which man lives; it varies in depth.
answer
crust
Unlock the answer
question
organisms that decompose matter
answer
decomposers
Unlock the answer
question
is the amount of matter in a given volume of an objects
answer
density
Unlock the answer
question
is used in getting the volume of irregularly shaped objects by immersing it in water and the amount of water that overflows is measured
answer
displacement method
Unlock the answer
question
is the ability of a material to be drawn into a fine wire without breaking
answer
ductility
Unlock the answer
question
the study of the interactions of living organisms with their environment
answer
ecology
Unlock the answer
question
is the ability of a material to return to its original shape and size after it has been stretched, twisted or compressed
answer
elasticity
Unlock the answer
question
is produced by the movement of electrons
answer
electrical energy
Unlock the answer
question
are the basic kinds of matter; they are substances that cannot be broken up into simpler form by ordinary chemical methods.
answer
elements
Unlock the answer
question
ductless glands that discharge their secretions directly into the bloodstream
answer
endocrine glands
Unlock the answer
question
is the capacity to do work
answer
energy
Unlock the answer
question
the red corpuscles or red blood cells
answer
erythrocytes
Unlock the answer
question
the minimum speed a spacecraft much reach to overcome the pull of gravity
answer
escape velocity
Unlock the answer
question
a systematic way of obtaining information to confirm a hypothesis
answer
experimentation
Unlock the answer
question
a prediction beyond the range of observable data
answer
extrapolation
Unlock the answer
question
are the characteristics of a substance which describes its outside appearance
answer
extrinsic properties
Unlock the answer
question
the union of the ovum and the sperm
answer
fertilization
Unlock the answer
question
is the ability of matter to be rolled or bent without breaking
answer
flexibility
Unlock the answer
question
the repeated transfer of chemical energy in food through a series of organisms by eating and being eaten
answer
food chain
Unlock the answer
question
the repeated process of using food substances by living organisms
answer
food cycle
Unlock the answer
question
a schematic or quantitative representation of a food chain with the food producers forming at the base and top consumers at the apex
answer
food pyramid
Unlock the answer
question
an overlapping system of food dependency
answer
food web
Unlock the answer
question
a cluster of stars, constellations and nebulae
answer
galaxy
Unlock the answer
question
is the resistance of a material from being scratched easily
answer
hardness
Unlock the answer
question
results from the rapid movement of molecules in matter
answer
heat energy
Unlock the answer
question
they are the internal secretions produced by the endocrine glands
answer
hormones
Unlock the answer
question
produces electricity by waterpower
answer
hydroelectric power
Unlock the answer
question
means that things cannot be on the same spot at the same time
answer
impenetrability
Unlock the answer
question
is the tendency of matter not to move unless it is moved by some outside force; also the tendency of matter to keep moving until stopped by an outside force.
answer
inertia
Unlock the answer
question
the space between planets
answer
interplanetary space
Unlock the answer
question
a prediction within the range of given data
answer
interpolation
Unlock the answer
question
are permanent characteristics of a substance which are inherent in the material itself.
answer
intrinsic properties
Unlock the answer
question
electrons are transferred from atom to atom
answer
ionic bonds
Unlock the answer
question
is the energy possessed by moving objects
answer
kinetic energy
Unlock the answer
question
the white corpuscles or white blood cells
answer
leucocytes
Unlock the answer
question
the distance traveled by light in one year; = to 9.46 km
answer
light year
Unlock the answer
question
is the ability of materials to be hammered or pounded into tin sheets or beaten into various shapes without breaking
answer
malleability
Unlock the answer
question
the layer which surrounds the core of the earth; made up of a thick layer of rocks
answer
mantle
Unlock the answer
question
is the amount of matter in an object which is measured in grams or kilograms
answer
mass
Unlock the answer
question
is anything that occupies space and has mass and weight
answer
matter
Unlock the answer
question
is energy shown in moving objects which when applied to another object will cause it to move
answer
mechanical energy
Unlock the answer
question
the part of the brain which controls the involuntary muscles of the heart, intestines, stomach, diaphragm, etc.
answer
medulla oblongata
Unlock the answer
question
is the sharing of electrons of many atoms
answer
metallic bond
Unlock the answer
question
a combination of 2 or more materials physically combined and can be separated by ordinary means
answer
mixtures
Unlock the answer
question
are the units that contain 2 or more atoms, which are constantly moving
answer
molecules
Unlock the answer
question
highly dangerous drugs that affect the mind; often addictive and in large doses can cause stupor, coma or death
answer
narcotics
Unlock the answer
question
a process where nitrogen gas from the atmosphere is fixed in the soil or roots of leguminous plants as nitrogen compounds for plants to use
answer
nitrogen-fixation
Unlock the answer
question
energy resources that cannot be replaced quickly once they are used up
answer
non-renewable
Unlock the answer
question
is energy released from the nucleus of an atom
answer
nuclear energy
Unlock the answer
question
produces nuclear energy by splitting the nuclei of heavy atoms into fragments
answer
nuclear fission
Unlock the answer
question
produces nuclear energy by combining the nuclei of light elements to form heavier and more stable nuclei
answer
nuclear fusion
Unlock the answer
question
the gland that has a special group of cells, the islet of Langerhans, which secretes the hormone insulin.
answer
pancreas
Unlock the answer
question
hormone secreted by the gland pancreas, which enables the liver to store sugar as glycogen and oxidize sugar efficiently
answer
insulin
Unlock the answer
question
the gland that secretes a hormone which controls the metabolism of calcium and phosphorus
answer
parathyroid gland
Unlock the answer
question
is the process of killing bacteria by heating food at 60?-66?C for 30-40 minutes and cooking it immediately
answer
Pasteurization
Unlock the answer
question
is a chart, which shows the many facts about elements and their atoms
answer
periodic table
Unlock the answer
question
the liquid part of the blood
answer
plasma
Unlock the answer
question
synthetics that can be pressed, melted or molded into any desired shape
answer
plastics
Unlock the answer
question
is the ability to absorb or hold much water or liquid
answer
porosity
Unlock the answer
question
is stored energy
answer
potential energy
Unlock the answer
question
foretelling the probable outcome or result
answer
predicting
Unlock the answer
question
plants that provide food for the community
answer
producers
Unlock the answer
question
states that the universe expanded from a ball of matter
answer
pulsating theory
Unlock the answer
question
comes in the form of light, infrared and ultraviolet rays, x-ray, radio waves and cosmic rays
answer
radiant energy
Unlock the answer
question
is the transfer of energy through waves
answer
radiation
Unlock the answer
question
is the simplest nervous reaction
answer
reflex action
Unlock the answer
question
is keeping food at low temperature where microorganisms become less active
answer
refrigeration
Unlock the answer
question
is the property of materials to be dissolved in liquid
answer
solubility
Unlock the answer
question
is the material being dissolved
answer
solute
Unlock the answer
question
is the dissolving medium
answer
solvent
Unlock the answer
question
is produced by vibrating objects
answer
sound energy
Unlock the answer
question
the region beyond the Earth's atmosphere
answer
space
Unlock the answer
question
an unmanned device sent out to explore space
answer
space probe
Unlock the answer
question
a reusable space vehicle which takes off like a rocket and lands like an airplane
answer
space shuttle
Unlock the answer
question
an orbiting spacecraft designed to be occupied by teams of astronauts and cosmonauts over long periods.
answer
space station
Unlock the answer
question
the measure of how fast an object moves
answer
speed
Unlock the answer
question
a huge shining ball in space that produces a tremendous amount of light and energy
answer
star
Unlock the answer
question
states that the universe had a beginning and it will have no end
answer
steady-state theory
Unlock the answer
question
an exploding star
answer
supernova
Unlock the answer
question
elements which are created in laboratories because they are not found in nature
answer
synthetic elements
Unlock the answer
question
are artificially prepared materials by putting together new compounds
answer
synthetics
Unlock the answer
question
are heated until they are soft then molded and cooled
answer
thermoplastic plastics
Unlock the answer
question
are placed in molds where heat and pressure are applied until the plastic set hardens
answer
thermosetting plastics
Unlock the answer
question
the gland that produces the hormone thyroxin which regulate the rate of metabolism
answer
thyroid gland
Unlock the answer
question
the measure of how fast an object moves towards a particular direction
answer
velocity
Unlock the answer
question
is the amount of space that an object occupies which is expressed in cubic units
answer
volume
Unlock the answer
question
is the pull of gravity on an object which is expressed in Newton or dyne
answer
weight
Unlock the answer
question
the change in velocity during a given period of time
answer
acceleration
Unlock the answer
question
type of precipitation like rain or snow; contains compounds that result from the reaction of oxides of sulfur, nitrogen and carbon with water
answer
acid rain
Unlock the answer
question
a volcano that has shown frequent eruptions with recent history
answer
active volcano
Unlock the answer
question
the mixture of gases that surrounds the earth
answer
air
Unlock the answer
question
the force that air exerts on a surface
answer
air pressure
Unlock the answer
question
a weather instrument that indicates wind speed
answer
anemometer
Unlock the answer
question
a living thing that cannot manufacture its own food; depends on plants for food
answer
animal
Unlock the answer
question
the brightness of a star that depends on its distance from the observer
answer
apparent brightness
Unlock the answer
question
a blood vessel that carries blood away from the heart
answer
artery
Unlock the answer
question
a rock layer in the lithosphere that may be characterized as weak, soft, and plastic-like
answer
asthenosphere
Unlock the answer
question
the belief that heavenly bodies have a great influence on human lives
answer
astrology
Unlock the answer
question
the air part of the earth
answer
atmosphere
Unlock the answer
question
the smallest particle of an element
answer
atom
Unlock the answer
question
the slender extension of a neuron that carries nerve impulses away from a cell body
answer
axon
Unlock the answer
question
forces that do not cause a change in an object's state of motion; the net force that acts on the object is zero
answer
balanced forces
Unlock the answer
question
a weather instrument that measures air pressure
answer
barometer
Unlock the answer
question
the ability of a material to be broken down into simpler forms by the action of microorganisms
answer
biodegradability
Unlock the answer
question
the living part of the earth; made up of plants and animals
answer
biosphere
Unlock the answer
question
the ratio of the number of births to the total population in a specified community during a given period of time
answer
birthrate
Unlock the answer
question
a cold, dark star that results when a white dwarf has totally lost its energy
answer
black dwarf
Unlock the answer
question
the pressure exerted by the blood upon the walls of blood vessels and especially the arteries.
answer
blood pressure
Unlock the answer
question
the air part of the earth
answer
atmosphere
Unlock the answer
question
the smallest particle of an element
answer
atom
Unlock the answer
question
the slender extension of a neuron that carries nerve impulses away from a cell body
answer
axon
Unlock the answer
question
forces that do not cause a change in an object's state of motion; the net force that acts on the object is zero
answer
balanced forces
Unlock the answer
question
a weather instrument that measures air pressure
answer
barometer
Unlock the answer
question
the ability of a material to be broken down into simpler forms by the action of microorganisms
answer
biodegradability
Unlock the answer
question
the living part of the earth; made up of plants and animals
answer
biosphere
Unlock the answer
question
the ratio of the number of births to the total population in a specified community during a given period of time
answer
birthrate
Unlock the answer
question
a cold, dark star that results when a white dwarf has totally lost its energy
answer
black dwarf
Unlock the answer
question
the pressure exerted by the blood upon the walls of blood vessels and especially the arteries.
answer
blood pressure
Unlock the answer
question
the circular depression formed whether by explosion or collapse of a volcano
answer
caldera
Unlock the answer
question
a tiny blood vessel in tissues and organs that makes exchange of nutrients and gases between the blood and tissues possible
answer
capillary
Unlock the answer
question
an animal that feeds on the meat of other animals
answer
carnivore
Unlock the answer
question
the number of organisms that the resources of an ecosystem can support
answer
carrying capacity
Unlock the answer
question
part of the nervous system that consists of the brain and the spinal cord
answer
central nervous system
Unlock the answer
question
the outward force exerted on a body in circular motion
answer
centrifugal force
Unlock the answer
question
the inward force exerted on a body in circular motion
answer
centripetal force
Unlock the answer
question
second largest part of the brain; refines and coordinates muscular movements
answer
cerebellum
Unlock the answer
question
largest and most complex structure of the brain
answer
cerebrum
Unlock the answer
question
the form of potential energy found in fuels, batteries and food
answer
chemical energy
Unlock the answer
question
a volcano made of loose rock fragments given off from the central vent forming a slope of about 30?
answer
cinder cone
Unlock the answer
question
the movement of a body along a circular path
answer
circular motion
Unlock the answer
question
one of the geographic belts that encircles the Pacific Ocean and includes the west coasts of North and South America, Japan and the Philippines
answer
circum-Pacific belt
Unlock the answer
question
the average weather condition of a place over a long period of time.
answer
climate
Unlock the answer
question
the relationship of cooperation in which one organism is helped while the other organism is neither helped nor harmed
answer
commensalism
Unlock the answer
question
groups of plants and animals living together
answer
community
Unlock the answer
question
the transfer of heat energy by direct contact between the particles of solid materials
answer
conduction
Unlock the answer
question
a material through which heat or electricity passes readily
answer
conductor
Unlock the answer
question
wise use of resources to preserve or protect them
answer
conservation
Unlock the answer
question
a group of stars that appears to form a picture or pattern
answer
constellation
Unlock the answer
question
an animal that feeds on plants or other animals
answer
consumer
Unlock the answer
question
the method of planting across instead of up and down a slope. this method prevents soil being washed down the hill.
answer
contour plowing
Unlock the answer
question
the transfer of heat by the movement of liquid or gas due to a temperature difference.
answer
convection
Unlock the answer
question
the innermost layer of the earth made up of two sublayers
answer
core
Unlock the answer
question
the practice of growing different plants on the same piece of land at different times of the year. this practice helps maintain the soil's fertility.
answer
crop rotation
Unlock the answer
question
the soli9d outermost part of the earth; made of rocks, soil and different landforms
answer
crust
Unlock the answer
question
an atmospheric disturbance characterized by masses of air rapidly rotating about a low-pressure center
answer
cyclone
Unlock the answer
question
a construction that serves as a barrier to control water flow in a waterway
answer
dam
Unlock the answer
question
the ratio of the number of organisms that die to the total population in a specified community during a given period of time
answer
death rate
Unlock the answer
question
an organism that feeds on dead organic matter and breaks it down to simpler substances
answer
decomposer
Unlock the answer
question
a short, threadlike extension of the cell body of a neuron; conducts nerve impulses toward the cell body
answer
dendrite
Unlock the answer
question
a volcano that has not erupted during the last 500 to 5000 years.
answer
dormant volcano
Unlock the answer
question
the shaking or trembling of the earth's crust
answer
earthquake
Unlock the answer
question
a sound that is reflected from a surface
answer
echo
Unlock the answer
question
a group of living things interacting with one another and with the nonliving environment
answer
ecosystem
Unlock the answer
question
the form of energy associated with electric charges
answer
electricity
Unlock the answer
question
a negatively charged particle in an atom
answer
electron
Unlock the answer
question
force that comes from within the earth
answer
endogenic force
Unlock the answer
question
the capacity to do work, that is, to exert a force on an object and cause it to move through a distance
answer
energy
Unlock the answer
question
a diagram that shows the flow of energy in a community
answer
energy pyramid
Unlock the answer
question
the change of energy from one form to another
answer
energy transformation
Unlock the answer
question
the sum of all the living and nonliving things that surround and affect an organism
answer
environment
Unlock the answer
question
the point on the earth's surface directly above the focus
answer
epicenter
Unlock the answer
question
force that comes from outside the surface of the earth
answer
exogenic force
Unlock the answer
question
a volcano that has remained dormant or inactive for more than 5000 years
answer
extinct volcano
Unlock the answer
question
a break or fracture formed when a land plate slips or slides
answer
fault
Unlock the answer
question
a chemical or natural mixture added to soil to help plants grow
answer
fertilizer
Unlock the answer
question
the ability to be burned
answer
flammability
Unlock the answer
question
a substance that helps make some food tastier or more appetizing
answer
flavor enhancer
Unlock the answer
question
a point within the earth from which earthquake waves originate
answer
focus
Unlock the answer
question
an arrangement of organisms according to a feeding order
answer
food chain
Unlock the answer
question
interacting food chains in a community
answer
food web
Unlock the answer
question
a kind of fuel that comes from the remains of plants and animals that have been buried over a long period of time.
answer
fossil fuel
Unlock the answer
question
a material that can be burned or used to produce heat and light
answer
fuel
Unlock the answer
question
the process in which two or more light atoms combine to form a heavy atom and release a large amount of energy
answer
fusion
Unlock the answer
question
the state of matter characterized by indefinite shape and volume
answer
gas
Unlock the answer
question
the form of energy that originates from the interior of the earth
answer
geothermal energy
Unlock the answer
question
the periodic to-and-fro motion of a vibrating objects
answer
harmonic motion
Unlock the answer
question
the iron-containing protein found in red blood cells; transports oxygen and carbon dioxide from the lungs
answer
hemoglobin
Unlock the answer
question
an animal that feeds on plants
answer
herbivore
Unlock the answer
question
the amount of moisture in the air
answer
humidity
Unlock the answer
question
a cyclone with heavy rains and with winds exceeding 120 kph
answer
hurricane
Unlock the answer
question
the energy obtained from fast-moving water that falls from a waterfall or a high dam
answer
hydroelectric power
Unlock the answer
question
the water part of the earth
answer
hydrosphere
Unlock the answer
question
"warming effect" due to trapping of heat energy in the earth's atmosphere.
answer
greenhouse effect
Unlock the answer
question
a structure that makes use of geothermal energy to produce electricity
answer
geothermal plant
Unlock the answer
question
a rock that is formed from hardened lava
answer
igneous rock
Unlock the answer
question
a sublayer of the core made of solid iron and nickel
answer
inner core
Unlock the answer
question
material that does not conduct heat or electricity
answer
insulator
Unlock the answer
question
a measure of the strength of an earthquake
answer
intensity
Unlock the answer
question
energy associated with motion
answer
kinetic energy
Unlock the answer
question
mudflow or moving mass of soil containing volcanic ash; behaves like wet concrete
answer
lahar
Unlock the answer
question
a circle drawn around a globe; measured in degrees north or south of the equator
answer
latitude
Unlock the answer
question
hot molten rock that issues from a volcano or a fissure in the earth's surface
answer
lava
Unlock the answer
question
states that energy changes its form but is neither created nor destroyed. The total of energy in a system remains the same.
answer
law of conservation of energy
Unlock the answer
question
states that an object at rest tends to remain at rest and an object in motion tends to move at a constant speed in the same direction unless acted upon by an imbalanced force.
answer
law of inertia
Unlock the answer
question
the distance traveled by light in one year; the unit used to express distance between heavenly bodies.
answer
light year
Unlock the answer
question
motion in a straight line.
answer
linear motion
Unlock the answer
question
the state of matter characterized by an indefinite shape and a definite volume.
answer
liquid
Unlock the answer
question
the land part of the earth
answer
lithosphere
Unlock the answer
question
a measure of the total amount of light energy a star gives off
answer
luminosity
Unlock the answer
question
part of the circulatory system that collects and drains fluid that seeps from the blood and accumulates in the space between cells
answer
lymphatic system
Unlock the answer
question
hot molten rock inside the earth
answer
magma
Unlock the answer
question
layer of the earth below the crust; made up of solid bedrock
answer
mantle
Unlock the answer
question
a star that has a mass at least 50 times greater than that of the sun
answer
massive star
Unlock the answer
question
anything that occupies space and has mass
answer
matter
Unlock the answer
question
the energy that an object possesses due to its motion or movement
answer
mechanical energy
Unlock the answer
question
earthquake belt that runs through the Mediterranean Sea, crosses the Mideast and the Himalayas, and passes through the East Indies to meet the circum-Pacific belt north of Australia
answer
Mediterranean-Himalayan Belt
Unlock the answer
question
a spiral type of galaxy where the planet Earth is found
answer
Milky Way
Unlock the answer
question
a measure of earthquake intensity expressed in Roman numerals from I to XII
answer
modified Mercalli scale
Unlock the answer
question
the boundary separating the crust from the mantle; also called Moho
answer
Mohorovicic discontinuity
Unlock the answer
question
a wind system that influences large climatic regions and reverses direction seasonally
answer
monsoon
Unlock the answer
question
the change in position of an object in relation to a reference point
answer
motion
Unlock the answer
question
a relationship of cooperation in which two different organisms help each other
answer
mutualism
Unlock the answer
question
a great cloud of dust and gas in space
answer
nebula
Unlock the answer
question
a cell specialized to transmit impulses
answer
neuron
Unlock the answer
question
the neutral particle of an atom; located in the nucleus
answer
neutron
Unlock the answer
question
the tiny core that is left after a supernova explosion
answer
neutron star
Unlock the answer
question
the star above the North Pole; also known as Polaris
answer
North Star
Unlock the answer
question
the energy that is released from nuclear fission or fusion or from radioactive decay
answer
nuclear energy
Unlock the answer
question
the small, dense central part of an atom
answer
nucleus
Unlock the answer
question
part of food that nourishes
answer
nutrient
Unlock the answer
question
tectonic plates found under the ocean
answer
oceanic plates
Unlock the answer
question
an organism that feeds on both plants and animals
answer
omnivore
Unlock the answer
question
layer of the earth between the mantle and the inner core; made up of liquid iron and nickel
answer
outer core
Unlock the answer
question
the three-atom molecule of oxygen that forms a protective layer in the upper atmosphere
answer
ozone
Unlock the answer
question
nerves and fibers that connect the central nervous system with other parts of the body
answer
peripheral nervous system
Unlock the answer
question
a chemical used to kill insects that are harmful to crops and other plants
answer
pesticide
Unlock the answer
question
a living thing that can manufacture its own food
answer
plant
Unlock the answer
question
the theory that states that our planer is made up of slowly moving land plates
answer
plate tectonics theory
Unlock the answer
question
the condition of the air, land and water that threatens the health and life of organisms due to the presence of harmful substances in these parts of the earth
answer
pollution
Unlock the answer
question
a group of the same kind of organisms living in the same area
answer
population
Unlock the answer
question
energy due to the position or composition of matter
answer
potential energy
Unlock the answer
question
an organism that can make its own food
answer
producer
Unlock the answer
question
the positively charged particle of an atom; located in the nucleus
answer
proton
Unlock the answer
question
the nearest star to the sun
answer
Proxima Centauri
Unlock the answer
question
a weather instrument that measures relative humidity
answer
psychrometer
Unlock the answer
question
blood circuit between the heart and lungs
answer
pulmonary circulation
Unlock the answer
question
the transfer of energy by heat waves
answer
radiation
Unlock the answer
question
a fixed point used to determine if there is a change in position
answer
reference point
Unlock the answer
question
the movement of the earth in its elliptical orbit around the sun
answer
revolution
Unlock the answer
question
a numerical measurement of an earthquake's strength
answer
Richter Scale
Unlock the answer
question
another name for the circum-Pacific earthquake belt that encircles the Pacific Ocean
answer
Ring of Fire
Unlock the answer
question
motion of a body that rotates about an axis
answer
rotary motion
Unlock the answer
question
the movement of the earth about its tilted axis
answer
rotation
Unlock the answer
question
an instrument that detects an earthquake and measures its strength
answer
seismograph
Unlock the answer
question
a heart valve that prevents blood from flowing back into the ventricles
answer
semilunar valve
Unlock the answer
question
a volcano with a broad cone gently sloping between 6? to 12?
answer
shield volcano
Unlock the answer
question
a meteor that is vaporized by heat of friction as it enters the atmosphere
answer
shooting star
Unlock the answer
question
any atmospheric disturbance with strong winds at a speed of 63 to 118 kph; often accompanied by heavy rain, snow or hail
answer
storm
Unlock the answer
question
also known as composite volcano; made alternately of pyroclastic materials and rock from solidified lave flow
answer
stratovolcano
Unlock the answer
question
massive stars that have become even bigger in size
answer
supergiants
Unlock the answer
question
the brilliant explosion of a supergiant
answer
supernova
Unlock the answer
question
the space between a neuron and the next neuron in an impulse pathway
answer
synapse
Unlock the answer
question
the study of the earth's crust
answer
tectonics
Unlock the answer
question
a measure of the average kinetic energy of molecules
answer
temperature
Unlock the answer
question
an instrument that measures temperature
answer
thermometer
Unlock the answer
question
a heavy storm accompanied by lightning and thunder
answer
thunderstorm
Unlock the answer
question
a violently whirling column of air accompanied by a funnel-shaped thundercloud moving over a narrow path
answer
tornado
Unlock the answer
question
a weather disturbance known as hurricane in the United States and typhoon if it occurs in the Pacific Ocean
answer
tropical cyclone
Unlock the answer
question
an atmospheric disturbance that has a wind speed of less than 63 kph
answer
tropical depression
Unlock the answer
question
an atmospheric disturbance that has a wind speed of 63 to 118 kph
answer
tropical storm
Unlock the answer
question
latitude that is located 23.5? north above the equator
answer
Tropic of Cancer
Unlock the answer
question
latitude that is located 23.5? south below the equator
answer
Tropic of Capricorn
Unlock the answer
question
a huge sea wave produced by an earthquake
answer
tsunami
Unlock the answer
question
a severe atmospheric disturbance in the Pacific; has a wind speed greater than 118 kph
answer
typhoon
Unlock the answer
question
forces that cause a change in an object's state of motion; the net force that acts on the object is not equal to zero
answer
unbalanced forces
Unlock the answer
question
blood vessel that carries blood from the body to the heart
answer
vein
Unlock the answer
question
the change in displacement of a body during a period of time
answer
velocity
Unlock the answer
question
the process or activity by which a volcano gives off gases and other volcanic materials
answer
volcanism
Unlock the answer
question
a vent on the earth's crust
answer
volcano
Unlock the answer
question
a compound that is made up of two atoms of hydrogen and one atom of oxygen
answer
water
Unlock the answer
question
the condition of the atmosphere within a short period of time
answer
weather
Unlock the answer
question
the remnant of a red giant that has lost its outer surface
answer
white dwarf
Unlock the answer
question
moving air
answer
wind
Unlock the answer
question
a weather instrument that tells the direction of the wind
answer
wind vane
Unlock the answer
question
a measure of how fast or how slow the wind moves
answer
wind speed
Unlock the answer
question
a funnel-shaped bag with holes at both ends; used to tell the direction of the wind
answer
wind sock
Unlock the answer