Experimental Design

Match it! Select the correct answer from the pull down...Good luck!

What is the name of the variable kept the same in an experiment?

Mrs. Bauer wanted to investigate whether the amount of time students studied for the test would affect their grade on final. What is the independent variable in the experiment?

What is the independent variable? Diana placed three tomato plants (A,B, C) under three different types of light. She measured the height of each plant after 3 weeks.

Mrs. Bauer wanted to investigate whether the amount of time students studied for the test would affect their grade on final. What is the dependent variable in the experiment?

How many variables are tested at one time in a controlled experiment?

What is the name of the group with normal conditions in a controlled experiment?

What is the name of the variable changed on purpose in the experiment?

Mrs. Bauer had 3 groups of 25 kids. Group A did not study for the final. Group B studied for 5 hours. Group C studied for 10 hours. Which group is the control group?