Science is about testing — and about looking closely. Some scientists use microscopes to take a close look. We're going to use a simple piece of paper.

Here's what you do:
Print this page and cut out the square to make a "window" one inch square. (It's easiest to fold the page in half before you cut.)

Choose something interesting: a tree trunk, a leaf, flower, the soil surface, or a slice of soil from a shovel.

Put your window over the thing and look at it closely. Take your time — this is not a race.

To help you see more details, draw a picture of what's inside your square.

Now let's think about what you've found.