Title

• Tells you what the graph is about

• Includes the dependent and independent variables

X-Axis Label

• Tells you what the x-axis (horizontal/bottom line) is showing

• Independent Variable

• Matches the different trails in the experiment

Trends in Graphs

As the time increases the mass of chalk decreases.

Trends in Graphs

As time increases, the speed increases.

Trends in Graphs

As time increases, the speed increases.

Data Table: Used to organize & record data that is collected.

• Can be used to help identify trends in data

• Tables are organized according to the independent and dependent variables in the experiment
  

• Dependent variable changes as a result of a change in the independent variable
  

• Independent variable will be listed in rows
  

• Dependent variable will be in columns

• Most data is arranged from smallest to largest

Data Talbes

• The information in each column is identified with a heading at the top of the column

• When units are used, they are included at the top of the column

• Data tables should always have a title that clearly communicates what is being shown in the table

• The title should refer to the variables in the experiment

Line Graphs show a relationship between two variables

• Line graphs are particularly useful for showing changes in variables over time

• Lines graphs are used when variables are continuous; meaning they have value including fractional values 

• For example, the height of a growing plant changes continuously

• As a plant grows from 10 cm to 11 cm, its height can be 10.2 cm, 10.537 cm, or any other value between 10 and 11

Line graphs are useful to represent trends

• Two values are inversely related or have a negative correlation in the value of one variable is associated with a decrease in the value of the other variable