Investigating Dependent and Independent Variables Quiz

What is the dependent variable in the experiment shown in the graph?

• The amount of light provided

• The height of the plants each day

Tags

NGSS.MS-LS1-5

What is the independent variable in the experiment shown in the graph?

• The amount of light provided

• The height of the plants each day

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

Which plant received the most light according to the graph?

• The plant with 0 hours of light

• The plant with 4 hours of light

• The plant with 8 hours of light

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

On which day did the plant receiving 8 hours of light reach a height of 37 cm?

• Day 10

• Day 13

Tags

NGSS.MS-LS1-5

The variable in an experiment is the one being changed by the scientist. 

• dependent variable
• independent variable

If you increase the amount of spinach you eat, then you will increase the iron in your blood.

What's the dependent variable?

• increase the amount of iron in your blood

• spinach you eat

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• How fast you get to school

• Riding a bike or walking

Tags

NGSS.MS-PS2-2

If the students study for my scientific method test, then they will have a better test score.

What is the dependent variable?

• Studying

• Test score

Researchers are developing a new fertilizer designed to improve the growth of endangered Hawaiian plants. The fertilizer was applied to one hundred plants in a greenhouse. The temperature, humidity and amount of water were kept constant. Which is best for the researchers to do next?

• Compare plants that received fertilizer to the plants that didn't received any

• Change the conditions in the greenhouse and retest the fertilizer

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment?

• the amount of carbon dioxide in each container

• the height of each plant after a period of time

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4