Scientific Method

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

• dependent variable
• independent variable
• data
• control group

Tags

NGSS.MS-PS2-2

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

Dependent variable means

• the scientist controls what to test
• educated guess
• ask a question
• what is being measured

Tags

CCSS.6.SP.B.5B

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?

• True
• How fast you get to school
• Riding a bike or walking
• False

Tags

NGSS.MS-PS3-1

Will a construction paper air plane fly faster than an airplane made from notebook paper? Choose the best hypothesis.

• If I make a paper airplane from notebook paper, then it will fly faster than construction paper.
• Yes.
• No.
• I think the construction paper air plane will fly faster.

Tags

NGSS.MS-PS2-2

NGSS.MS-ETS1-2

If I study for my scientific method test, then I will have a better test score. What is the dependent variable?

• Scientific Method
• Studying
• Independent variable
• Test score

William thinks he can get to school faster by riding his bike than running. On Monday he runs to school. On Tuesday he rides his bike. He records how long it takes him to get to school both days. What is the independent variable?

• where the school is

• how long it takes him to get to school

• how he gets to school (running vs riding bike)

• if it is raining

A constant in an experiment is used for..

• a comparison or base line

• another variable to test

• testing the hypothesis

• measuring

Jamie wants to see the effect of sunlight on sunflower plants. She gives 5 plants 12 hours of sun a day and 5 plants 6 hours of sun a day. She records their heights each day for 1 month. What should she keep constant?

• how tall the plants grow

• the amount of sunlight

• the amount of water