Science Experiment Design Learning Check 1

How many independent variables should you have in an experiment?

• One

• Two

• Three

• Four

What do you call the variable that is measured in an experiment?

• Independent variable

• Dependent variable

• Constant

• Control

Why do we need to have a control group?

• To test multiple variables at once

• To have a standard for comparison

• To increase the sample size

• To ensure the experiment is faster

How do you make sure that an experiment is a fair test?

• By changing multiple variables

• By keeping all variables the same except one

• By using different types of plants

• By conducting the experiment in different locations

Tags

NGSS.MS-PS2-2

This part of the experiment is the group that receives the treatment or variable being tested. 

• experimental group

• control group

• data

• variables

What is the purpose of random assignment in an experiment?

• To ensure each participant has an equal chance of being in any group

• To increase the sample size

• To test multiple variables at once

• To ensure the experiment is faster

Which variable is manipulated by the researcher in an experiment?

• Dependent variable

• Independent variable

• Control variable

• Constant

What is the main reason for using a double-blind study?

• To increase the sample size

• To reduce bias

• To test multiple variables at once

• To ensure the experiment is faster