grooms study guide

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

• independent variable

• dependent variable

• control variable

What is being measured or the result/effect of this experiment?

• ramp height

• the speed that the ball rolls

• type of ball

This variable in an experiment is the one being deliberately changed by the scientist.

• dependent variable

• independent variable

• data

• control group

A possible explanation to a problem that has not yet been tested.

• data

• theory

• hypothesis

• fact

What is being changed in this experiment?

• ramp height

• the speed that the ball rolls

• type of ball

The part of the experiment that remains unaffected by the independent variable. Used to compare dependent variable to.

• constants

• control group

• independent

• dependent

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: water, apple juice, or milk. What variables should be kept constant/controlled?

• type of plant, flower pot, soil, and amount of sunlight

• water, apple juice, milk

• only the amount of sunlight

• type of plant only

Why do we want to test one variable at a time?

• because it is hard to setup a data table with more

• To know what is causing the changes. This helps us understand cause and effect.

• it is what has always been done

If plants are exposed to sunlight, then they will grow taller.
What part of the scientific method is this an example of?

• procedure

• hypothesis

• question

• results

Should experiments be repeated over and over to see if the results are the same each time?

• yes

• no