Graphing Data

Question 1

What is the importance of graphing in scientific experiments?

Answer 1

Graphing displays the data collected during a controlled experiment

Question 2

What are the five major parts of a graph?

Answer 2

• Title
• Independent variable
• Dependent variable
• Scales for each variable
• Legend

Question 3

What does the TITLE of a graph depict?

Answer 3

It depicts what the graph is about and should be a concise statement

Question 4

Where is the INDEPENDENT VARIABLE placed on a graph?

Answer 4

On the X axis (horizontal axis)

Question 5

What is the INDEPENDENT VARIABLE?

Answer 5

The variable that is changed and manipulated by the experimenter and it directly affects the dependent variable

Question 6

What is the DEPENDENT VARIABLE?

Answer 6

The variable that is directly affected by the independent variable

Question 7

Where is the DEPENDENT VARIABLE placed on a graph?

Answer 7

On the Y-axis (vertical axis)

Question 8

What is an example of a DEPENDENT VARIABLE?

Answer 8

The number of oxygen bubbles produced by a plant located at a certain depth

Question 9

What is the purpose of the SCALES for each variable in a graph?

Answer 9

To know where to plot the points representing the data

Question 10

What should the scales in a graph start with?

Answer 10

0 and climb based on intervals such as: multiples of 2, 5, 10, 20, 25, 50, or 100

Question 11

What is the LEGEND in a graph?

Answer 11

A short descriptive narrative concerning the graph’s data

Question 12

How do you calculate the MEAN for a group of variables?

Answer 12

Divide the sum of the variables by the total number of variables

Question 13

How do you determine the MEDIAN for an even number of values?

Answer 13

Put the values in ascending order and take the average of the two middle values

Question 14

What is the MODE of a group of values?

Answer 14

The number that occurs most frequently

Question 15

In the example 2, 5, 8, 2, 6, 11, what is the mode?

Answer 15

2

Question 16

Fill in the blank: The _______ variable is controlled by the experimenter.

Answer 16

[independent]

Question 17

Fill in the blank: The _______ variable is affected by the independent variable.

Answer 17

[dependent]

Question 18

True or False: The scales on a graph can start from any number.

Answer 18

False

Question 19

What are graphs?

Answer 19

Images/Diagrams used to represent data

Question 20

Graphs are made from _____ tables.

Answer 20

data

Question 21

In graphs, what are the two types of variables?

Answer 21

• Independent
• Dependent

Question 22

What type of graph is used for categories?

Answer 22

Bar Graph

Question 23

What is a T-Chart?

Answer 23

A type of graph used to organize data into two columns

Question 24

What does a Line Graph represent?

Answer 24

Change over time

Question 25

What should you do to the axes in a graph?

Answer 25

Number your axis with consistent pattern

Question 26

What is a legend in a graph?

Answer 26

A label that explains what the symbols or colors represent

Question 27

What is a Scatter Plot used for?

Answer 27

To show the relationship between two variables

Question 28

What is a Histogram?

Answer 28

A graph that groups data into ranges

Question 29

What is a Pie Chart?

Answer 29

A graphic divided into slices to illustrate **catergories with percantages.**