Practice Test: Experimental Design

I wanted to see if my heart rate would increase if I do jumping jacks. I measured my heart rate before doing jumping jacks and after. What is the independent variable?

• doing jumping jacks or not

• heart rate

I wanted to see if my heart rate would increase if I do jumping jacks. I measured my heart rate before doing jumping jacks and after. What is the dependent variable?

• doing jumping jacks or not

• heart rate

I wanted to see if my heart rate would increase if I do jumping jacks. I measured my heart rate before doing jumping jacks and after. What is the control?

• resting heart rate

• after doing jumping jacks heart rate

What are the things that are kept the SAME in an experiment called?

• control

• constants

I want to test the color of light on plant growth. I grow tomato plants in regular light, red light, green light, and yellow light. What is the independent variable?

• color of light

• height of plant

Tags

NGSS.MS-LS1-5

I want to test the color of light on plant growth. I grow tomato plants in regular light, red light, green light, and yellow light. What is the dependent variable?

• color of light

• height of plant

Tags

NGSS.MS-LS1-5

What is a factor that is measured for change in an experiment? (The DATA that is being measured).

• control

• constant

• independent variable

• dependent variable

Tags

NGSS.MS-PS1-2

What is the factor that an experimenter changes on purpose? (What you are testing...What "I" change in the experiment).

• Dependent Variable

• Independent Variable

• Constant

• Control

The part of the experiment that does not contain the independent variable. Used for comparison.

• Control Group
• Experimental Group
• Results
• Data

What is the effect of salt water on the average of the 3 tallest blades of grass?
The above question is an example of:

• Hypothesis
• Conclusion
• Experiment
• Problem

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4