Graphs and Experiment Design

Question 1

When would you use a bar graph to display your data?

Answer 1

If the independent variable is grouped

Question 2

When would you use a line graph to display your data?

Answer 2

if the independent variable is quantified or related to time

Question 3

What do error bars do?

Answer 3

They help you do scientific things with your eyes

Question 4

What does it mean if you have a large error bar?

Answer 4

That there is a large chance for error

Question 5

If the error bars cross what does that mean?

Answer 5

error

Question 6

If the error bars do not cross what does that mean?

Answer 6

not much error

Question 7

What is the 1st step in a scientific hypotheses?

Answer 7

Come up with a specific reason that explains the phenomena

Question 8

What is the 2nd step in a scientific hypotheses?

Answer 8

Write a testable statement

Question 9

What is the independent variable and where is it on a graph?

Answer 9

The independent variable is the variable that stands alone and is not changed by other variables. It is on the x-axis

Question 10

What is the dependent variable and where is it on a graph?

Answer 10

The dependent variable is the variable that changes due to the independent variable. It is on the y-axis

Question 11

What is a control group?

Answer 11

This is a group in testing that does not change. (The average)