Students test how much milk a cow produces based on how much grass it eats. For each day for a week they increase the amount of grass it eats.
What is the independent variable?
The amount of grass.
100
A scientist tested how much seaweed grows in different bodies of water over a span of 2 weeks.
What is the independent variable?
The body of water the seaweed is in.
100
A scientist is looking at different depths for the depth with the most plankton.
What is the IV
The depth of water.
100
Dylan gave the same person a math test at different times of day and recorded how long it took for them to finish it.
What is the independent variable?
The time of day the person took the test.
100
A scientist wanted to test if you feed a goldfish Goldfish Crackers, would it grow more?
Yes!
200
Students test how much milk a cow produces based on how much grass it eats. For each day for a week they increase the amount of grass it eats.
What is the dependent variable?
How much milk the cow produces.
200
A scientist tested how much seaweed grows in different bodies of water over a span of 2 weeks.
What is the dependent variable?
How much the seaweed grows.
200
A scientist is looking at different depths for the depth with the most plankton.
What is the DV
The amount of plankton in the water.
200
Dylan gave the same person a math test at different times of day and recorded how long it took for them to finish it.
What is the dependent variable?
How long it takes for the person to finish the test.
300
Students test how much milk a cow produces based on how much grass it eats. For each day for a week they increase the amount of grass it eats.
What is the controlled variable?
Type of grass, type of cow, the cow, age, gender, hunger, and weight.
300
A scientist tested how much seaweed grows in different bodies of water over a span of 2 weeks.
What is the controlled variable?
Seaweed, air, and he scientist that is testing it.
300
A scientist is looking at different depths for the depth with the most plankton.
What is the CV
The CV is the body of water, the microscope, the predators to plankton, how much they look, where it is, type of water, and temperature.
300
Dylan gave the same person a math test at different times of day and recorded how long it took for them to finish it.
What is the controlled variable?
The person, the test, the place, Dylan, and the timer