Unit 1.3

Question 1

Which variable comes first in a hypothesis?

Answer 1

Independent Variable

Question 2

What are the 3 main types of graphs?

Answer 2

Line graph, Bar graph, Scatter graph/plot

Question 3

What variable is changed by the other?

Answer 3

Dependent Variable

Question 4

What is a control group?

Answer 4

Standard data to which comparisons are made.

Question 5

Why is a control group important?

Answer 5

It shows the affect your claim has on what you’re testing.

Question 6

T / F - The control group the same as the independent variable group aside from one change.

Answer 6

True - Only one thing is changed at a time between the control group and independent variable.

Question 7

What is the first step when writing a hypothesis?

Answer 7

Come up with a specific reason that explains a phenomena.

Question 8

What does an error bar show?

Answer 8

An error bar represents standard deviation on a bar graph.

Question 9

The error bar would be ___ if the data is closer together.

Answer 9

smaller

Question 10

What would a control group be in the following experiment.
If people drink a glass of orange juice every day, then they will score better on tests.

Answer 10

Tests taken by people who did not drink a glass of orange juice, but did everything else the same.