Learn1 of 3
Turning Numbers into Pictures
You measured your plants and wrote down numbers. Now let us turn those numbers into a picture called a bar graph!
A bar graph uses colored bars to show numbers. Taller bars mean bigger numbers. When you look at a bar graph, you can instantly see which plant grew the most.
For our light experiment, we might have these measurements after two weeks:
- Control plant (with light): 12 cm tall
- Test plant (no light): 8 cm tall
On the graph, the control plant gets a tall green bar up to 12, and the test plant gets a shorter yellow bar up to 8. Just by looking at the graph, you can see that the plant with light grew more!
Graphs make it easy to compare results and see patterns. That is why scientists use them all the time.