A graph is a diagram that uses pictures, lines, or bars to show information in a way that makes patterns easy to see. Instead of staring at a long list of numbers, you can look at a graph and instantly understand what's happening.

Scientists use graphs to track how fast a plant grows each week. Weather forecasters use them to show temperature changes over a month. Your teacher might make a graph showing how many students chose each flavor of ice cream in a class survey. The graph turns boring rows of data into something your eyes can grasp immediately: you can see which flavor won, which came in last, and everything in between.

Different types of graphs work best for different information. A bar graph uses rectangles of different heights to compare amounts. A line graph connects dots to show how something changes over time, like your height from age five to age ten. A pie graph (also called a pie chart) looks like a sliced pie and shows how a whole thing divides into parts, like how you spend your allowance.

In math class, you might also encounter a different kind of graph: a coordinate grid with an x-axis and y-axis where you plot points and draw lines to show equations. This type helps you visualize mathematical relationships.

The word can also be a verb: when you graph something, you're creating one of these diagrams using your data.