Essentials Unit 1 Pretest

What is the part of an experiment that serves as a standard for comparison?

• Control Group

• Constant

• Hypothesis

• Variable

A testable prediction that predicts a cause and effect relationship between variables is a(n) ____.

• hypothesis

• analysis

• observation

• inference

• conclusion

Tags

NGSS.MS-LS1-5

Where does the dependent variable go on a graph?

• X-axis

• Y-axis

• In the Title

• In the Key

Why is it advisable to use tongs when taking a beaker off a laboratory burner?

• It prevents spilling.

• It prevents the beaker from breaking.

• It looks cool.

• It allows you to move it if it is too hot.

A factor in an experiment that changes in response to the independent variable is the ____.

• independent variable

• control group

• hypothesis

• constant

• dependent variable

Using the graduated cylinder to the right, pick the accurate AND precise measurement below.

• 20.0 mL

• 20.0 mL

• 22 mL

• 20 mL

If your lab partner’s clothes catch on fire, you should first __________.

• use a fire extinguisher

• panic

• do nothing. It will burn out eventually.

• tell the teacher

All of the following are steps in the scientific method EXCEPT

• observing and recording data.

• forming a hypothesis.

• developing a model.

• discarding data that doesn’t match the hypothesis.

Tags

NGSS.MS-PS1-2

The best type of graph to use to show the percentages of a whole is a

• Bar graph

• Circle Graph

• Line Graph

• Scatter Graph

A factor that does NOT change in an experiment is the ______

• constant

• control group

• hypothesis

• dependent variable

• independent variable