Scientific Investigation Quiz

The independent variable is the

• one you measure.
• one you change.

You can have more than one independent variable in a controlled experiment.

• True
• False

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

The variables you keep the same in the experiment are called

• independent variables

• dependent variables

• controlled variables

• hypothesis

An experiment in which only 1 independent variable is being tested at a time is called a _____ experiment.

• Controlled

• Uncontrolled

Jesse collects the heights of plants for 50 days and puts it into a table. This is an example of __.

• Problem

• Data

• Hypothesis

• Claim

The thing that you are measuring in a controlled experiment is the ___.

• Independent variable

• Dependent variable

True or False? It is okay to change both the amount of water AND the amount of sunlight in a controlled experiment.

• TRUE

• FALSE

Sally wants to see if Pampers or Luvs diapers work better against leaks. What is the independent variable in this experiment?

• The amount of liquid the diaper holds

• The brand of diapers

The dependent variable is...?

• the one you change

• always kept the same

• compared to the indepedendent variable

• the one you measure