Unit 1 - Practice Test (8th)

What is Science?

• A way to prove that you're right and can answer all questions.
• Learning about the world through observation & experimentation.
• A way to solve all problems in the world, when done correctly.

Tags

NGSS.MS-LS1-1

NGSS.MS-PS1-2

What are Independent Variables?

• The variable being changed every test by the scientist in an experiment.
• The variable that remains the same in every test.
• The results of the experiment, based on what was changed (different) in each test.

Tags

NGSS.MS-PS2-2

What are Dependent Variables?

• The variable being changed every test by the scientist in an experiment.
• The variable that remains the same in every test.
• The results of the experiment, based on what was changed (different) in each test.

Tags

NGSS.MS-PS1-2

What are Controlled Variables?

• The variable being changed every test by the scientist in an experiment.
• The variable that remains the same in every test.
• The results of the experiment, based on what was changed (different) in each test.

Should a scientist change more than 1 variable at a time during an experiment?

• Yes, because then they can test more at once and finish faster.
• Yes, because it causes more accurate results.
• No, because if you do it can be hard to know what change caused the results.
• No, because doing too many changes may cause an accident!

Tags

NGSS.MS-PS2-2

What are observations?

• Using one or more of your senses to collect information about the world.
• Using sight only to gather data from an experiment.
• Predicting what will happen or creating a story based on the information given.

Tags

NGSS.MS-PS2-2

True or False: You can use ALL 5 senses to observe in science.

• True
• False

Tags

NGSS.1-PS4-1

NGSS.2-PS1-1

NGSS.K-2-ETS1-1

When are Observations used in Science?

• To spark new questions.
• To collect data & test hypotheses.
• As evidence when you evaluate data or make a conclusion.
• All of the above.

Tags

NGSS.MS-LS2-1

What are Inferences?

• Telling a story that sounds fun, but may or may not be true.
• Connecting emotions to the data collected.
• The process of drawing conclusions based on evidence & reasoning.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

When are Inferences used in Science?

• To create Hypotheses (Predictions).
• To Explain the Data after a lab or study.
• All of the above
• None of the above

Tags

NGSS.MS-LS1-5

NGSS.MS-PS1-2