Scientific Inquiry Skills

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. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant

• The amount of sunlight

• The type of music

• The type of liquid

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball

• Force acting on the ball

• Height that the ball bounces

• Height from which the ball is dropped

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. What is the control variable?

• The ball used
• The height the ball bounces
• Height of the ball being dropped

Mr. Carter set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?

• Distance traveled by the ball

• Height of the ramp

• Mass of the ball

• Whether or not the ball identifies as a ball.

Ramone wants to know: does the distance a person kicks a soccer ball effect how well they will do on their math test. What is the dependent variable?

• How far they kick the soccer ball

• who the person is

• how well they do on the math test

• Type of soccer ball.

The things that are kept the same to ensure the results are due to the experiment is called..

• Control experiment

• Controlled variables

• Independent Variable

• Dependent Variable

The variable that is changed on purpose is..

• Controlled

• Control

• Independent Variable

• Dependent Variable

Mr. Carter wants to see if studying time affects test scores...He gives all 6 classes the same assignment but assigns different study times. What is the best controlled variable?

• Study Times

• Test Scores

• Same Assignment

• Same students

Mr. Carter wants to see if studying time affects test scores...He gives all 6 classes the same assignment but assigns different study times. What is the dependent variable?

• Study time

• Test Score

• Same Assignment

• The class

A student wants to test the hypothesis of "If salt is added to water then the boiling point of water will decrease." What is the independent variable?

• Amount of salt

• Boiling Point

• Amount of water

• Amount of lemonade