Practice of Science Test Review

Scientific knowledge never changes.

• True

• False

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-5

Which of the following is an example of replication?

• Another science class performs our same experiment.

• We launch the golf ball twenty times at each catapult arm length

• We roll each type of ball down the ramp 5 times.

• We explode each type of soda with Mentos 3 times.

One group of dogs is fed the normal amount of food once a day. A second group is fed twice a day. A third group is fed four times a day. The dog’s weights are recorded daily.

What is the independent variable?

• Dogs weight

• Number of feedings

• Dogs

• Group

One group of dogs is fed the normal amount of food once a day. A second group is fed twice a day. A third group is fed four times a day. The dog’s weights are recorded daily.

What is the dependent variable?

• Dogs

• Number of feedings

• Dogs weight

• Group

One group of dogs is fed the normal amount of food once a day. A second group is fed twice a day. A third group is fed four times a day. The dog’s weights are recorded daily.

What is the control variable?

• Group 1 (normal amount)

• Group 2 (fed twice a day)

• Group 3 (fed 3 times a day)

• Group

Which of the following would be an example of a quantitative observation?

• The liquid is green.

• The air is warm.

• The plant grew 3 cm.

• The plant is growing.

Observations that deal with descriptions such as color, shape, and texture are called

• qualitative observations.

• quantitative observations.

• responding observations.

• manipulated observations.

Jeff observes that his new lab partner, Diane, has worn teal colored tee shirts for three of the past five days. He believes that Diane likes the color teal. What has Jeff done?

• Made a scientific model

• Made an observation.

• Made a jugement.

• Made an inference.

Which of the following statements are true?

• Theories are less scientific than laws.

• Theories are laws that have not been proven true yet.

• Laws are easily observed in nature and can be easily tested in the lab.

• Laws are theories that have not been proven true yet.

Aidan is learning about what he has to do for his science fair project. He is told that his project needs to have multiple trials. What should he do to make sure he has multiple trials?

• His friend Kayden should replicate the experiment several times.

• Other students in his class should replicate the experiment once.

• Aidan should conduct his experiment several different ways.

• Aidan should repeat his experiment several times.