Test- Unit One Scientific Method

Question 1

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

Answer 1

A. Control group.

Unit 1, concept 4 page 26.

Question 2

3.Where does the dependent variable go on a graph?

Answer 2

B. The Y-axis.

Unit 1, concept 4 page 27

Question 3

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

Answer 3

B. 20.0 mL.

Unit 1, concept 2 page 10

Question 4

23. What does P.A.S.S. stand for?

Answer 4

Pull, Aim, Squeeze, Sweep.

Unit 1, concept 1 page 4.

Question 5

30. What is the average length of group A’s data?

Answer 5

27.175 cm.

Unit 1, concept 2 page 10

Question 6

31. What is the average length of group B’s data?

Answer 6

25.8 cm.

Unit 1, concept 2 page 10

Question 7

32. What groups data is more precise? Why?

Answer 7

Group A’s data is more precise because there numbers are all closer together than group B’s numbers.

Unit 1, concept 2 page 10

Question 8

33. If the actual length of the notebook is 26.1 cm, which set of data is more accurate?

Answer 8

Group B because there numbers are closer to 26.1 cm.

Unit 1, concept 2 page 10.

Question 9

34. What is the independent variable in this experiment?

Answer 9

The independent variable is how caffeine affects water fleas.

Unit 1, concept 4 page 26.

Question 10

54. What is this object?

Answer 10

It is a Bunsen burner. It is a gas powered flame that is used to heat up chemicals.

Unit 1, concept 1 page 5.