Aim: Why are graphs important in the field of science?

What is the purpose of a graph? Graphs provide an organized way to display data. They provide an easier way to see patterns. Graphs can be used to make predictions.

Creating a Line Graph Create a title Each axis must be properly labeled along with respective units Independent Variable: (the cause) is represented on the horizontal axis (x-axis) Dependent Variable: (the effect of result) is represented on the vertical axis (y-axis)

Numbers on each axis must be consistent. Points must be plotted in proper location, circled, and connected. Graphing Vocabulary: Variable: a factor that can be changed. Relationship: association between two variables.

How can we read a graph? What is the mass of this object if the volume is 100 cm3? 200 grams

A is heavier than B A is faster than B A is shorter than B A is younger than B B weighs less than A B is slower than A B is taller than A B is older than A

What are the four types of line graphs? Direct Relationship: As time increases, the temperature increases Temp. (°C) Time (Hour)

As time increases, the temperature decreases Inverse or Indirect Relationship: As time increases, the temperature decreases Temp. (°C) Time (Hour)

As time increases, the temperature remains the same No change, no relationship: As time increases, the temperature remains the same Temp. (°C) Time (Hour)

As time increases, the temperature increases then decreases Cyclic Event: As time increases, the temperature increases then decreases Temp. (°C) Time (Hour)

How can we extrapolate information from our graph? To infer or estimate by extending or projecting known information. Extend the line of your graph using a straight edge (ruler).

What is the volume of this object if the mass is 400 g?

Summary Why are graphs useful? What are the two variables plotted on a graph? How many types of graphs are there? What are their names? What does it mean to extrapolate information from a graph?

What is the density of this object?