7th Grade Science Student ebook

1.3 Graphs.

CHAPTER 1: STUDYING LIFE

Suppose your graph has 12 boxes on each axis. Figure 1.11 shows

how you would create a scale for the x-axis. Figure 1.11 also shows

how you would create a scale y-axis of the graph for depth and

pressure.

Step 3: plot your
data

Plot each point by finding the x-value and tracing the graph

upward until you get to the right y-value. Make a dot for each

point. Draw a smooth curve that shows the pattern of the points

(shown below).

Step 4: create a

title

Create a title for your graph. Also, be sure to label each axis and

show units (shown above).

Do you see a relationship between the variables? The next page

explains how to recognize relationships on a graph. Read the next

page, then see if you can explain what type of relationship is shown

in the graph above.

Figure 1.11: How to make a scale for

the x- and y-axes for the depth and

pressure data.