Trends and Predictions From Data
Reading a single value off a graph is a good start, but the science test usually wants more: it wants you to see where the data is heading. The overall direction of the data is called a trend, and once you can spot a trend, you can make a reasonable prediction about what comes next. […]
Circle Graphs and Scatterplots
Two more graph types show up often on the science test, and each answers a very different question. A circle graph (or pie chart) shows how a whole is divided into parts. A scatterplot shows whether two measurements are related. Learn what each one is for, and you will know what to look for before […]
