Independent Variable
Explain what an independent variable is.
The one variable that you change in an experiment. What you are testing.
Explain what a dependent variable.
What are constants?
Parts of an experiment that remain the same.
Identify the IV: Does the amount of sunlight affect how tall a plant will grow?
The amount of sunlight.
Identify the DV: Does the amount of sunlight affect how tall a plant will grow?
The height of the plants.
Identify two constants: Does the amount of sunlight affect how tall a plant will grow?
Type of plant, type of soil, pot type and size, fertilizer, amount of water, type of water.
Identify the IV: Does the color of a shirt affect how much heat it absorbs?
Color of the shirt.
Identify the DV: Does the color of a shirt affect how much heat it absorbs?
Amount of heat absorbed/temperature of shirt
Identify two constants: Does the color of a shirt affect how much heat it absorbs?
Identify the IV: How does the height of a ramp affect the distance a toy car rolls?
Height of ramp
Identify the DV: How does the size of a rubber ball affect the height of its bounce?
Height of the bounce.
Identify two constants: How does the size of a rubber ball affect the height of its bounce?
Surface, type of rubber ball, way you drop it.
Identify the IV: How does the design of a bridge affect the amount of weight it can hold?
Design of the bridge.
Identify the DV: How does the height of a ramp affect the distance a toy car rolls?
Distance the toy car rolls.
Identify two constants: How does the height of a ramp affect the distance a toy car rolls?
Toy car, surface, type of ramp/material.