Scientific Investigation: Question Preview (ID: 20443)


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What's the DV: Does the height of a ramp affect the speed of a toy car?
a) height of ramp b) speed of toy car c) type of ramp d) distance car travels
Find the IV: If we increase the temperature of water, then the tablet will dissolve faster.
a) rate that tablet dissolves b) type of tablet c) increasing the temperate of water d) amount of time tablet remains in water
Choose the DV: Eggs were placed in containers with and without salt to determine how high they would float. What's the DV?
a) amount of water in each container b) number of eggs c) height the eggs floated d) amount of salt in each container
Choose the IV: One egg was placed in water without salt, one was placed in water with 2 tbsp of salt, and one was placed in water with 4 tbsp of salt. Make observations to see if the egg floats or not.
a) egg b) amount of salt c) water without salt d) amount of water in each container
Which hypothesis is written correctly?
a) I think the egg will float in salt water. b) If more salt is added to water, then the higher the egg will float. c) If the egg floats, then the water is salty. d) I believe adding salt to water allows an egg to float.
Which part of the investigation is measured and results are recorded?
a) control b) dependent variable c) independent variable d) constant
Which part of the investigation is a comparison to the independent variable?
a) control b) dependent variable c) independent variable d) constant
Which part of the investigation is changed or manipulated by the scientist.
a) control b) dependent variable c) independent variable d) constant
Which part of the investigation is kept the same and doesn't change throughout the experiment?
a) control b) dependent variable c) independent variable d) constant
Which describes quantitative observation?
a) observations made involving exact quantities and measurements are made b) observations made using your senses to describe c) inferring what happened d)
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