Scientific Investigations

The independent variable is the ONE thing you _____ in an experiment.

• add up

• change

• keep the same

• measure

Tags

NGSS.MS-PS3-4

Scientists must decide which _________ will stay constant (or controlled) in an experiment

• data

• hypotheses

• variables

• question

Tags

NGSS.MS-PS3-4

What is a constant (or control) in an experiment?

• Things that DO NOT change in a experiment. You can have many variables stay the same.

• It's the variables that the scientist CHANGES in the experiment.

• It's the variables that are being MEASURED in an experiment.

The summary at the end of an experiment that explains the results.

• conclusion

• procedures

• materials

• variables

Tags

NGSS.MS-PS1-2

A testable educated guess to a scientific question

• Question

• Hypothesis

• Conclusion

• Experiment

You want to see if the amount of sunlight a plant receives affect the plant's height. What should you CONTROL in this experiment?

• amount of water given to each plant

• plant height

• amount of sunlight

Tags

NGSS.MS-LS1-5

How many independent (manipulated) variables should you have in an experiment?

• two

• as many as possible

• four

• one

A SCIENTIFIC question must...

• Be testable

• NOT include opinions or beliefs

• Be specific

• All are correct!

Tags

NGSS.HS-LS3-1

The more trials you do of an experiment, the more reliable the results will be.

• True

• False

Tags

NGSS.MS-LS2-4

What two words should be in your hypothesis?

• I think

• If ...then...

• It will

• No idea