Which statement best represents how structure relates to function?

• Humans have teeth for grinding and tearing

• Some cells live longer than others.

• Toucans can be taught to speak

• Dogs fur is sometimes black, brown, or yellow.

How do red blood cells show structure and function?

• They are shaped like smooth discs

• Because of their shape, they are able to flow through the arteries and veins

• They carry oxygen through the body

• They keep humans alive

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

• dependent variable

• independent variable

• data

• control group

What is a hypothesis?

• A hypothesis is the right answer to an experiment.
• A hypothesis is the wrong answer to an experiment.
• A hypothesis is an educated guess.
• I don't know.

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

If plants are exposed to sunlight, then they will grow taller.
What part of the scientific method is this an example of?

• Procedure
• Hypothesis
• Question
• Results

Tags

NGSS.MS-LS1-5

What step does every scientific experiment begin with?

• hypothesis

• observation/ question

• procedures

• conclusion

Which of the following is an observation of the picture?

• The person is wearing a T-shirt
• It is a sunny day
• The person is going to a birthday party
• The gift is a DVD player

Tags

CCSS.RI.8.1

CCSS.RI.9-10.1

CCSS.RL.7.1

CCSS.RL.8.1

CCSS.RL.9-10.1

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