Easy Outdoor Science Experiments For Kids


Lawn Census

The U.S. census -- a count of the population -- is taken every ten years, but you can do a "lawn census" whenever your lawn needs to be mowed. A census is simply a way to learn about the people who live in a certain area, so when you take a "lawn census," you will find out who is living in your lawn -- and how many of them are living there.

You can also discover other things, such as what kind of grass grows there and if there are different kinds of weeds. Then, be a census taker for the population that lives in your yard. You just might meet some beetles, spiders, worms, grubs, and other lawn dwellers.

What You'll Need:

  • Lawn
  • Notebook
  • Pencil
  • Magnifying glass (optional)

How to Take a Lawn Census:

Step 1: When your lawn is ready to be mowed, get down on your hands and knees and look for animal life. Use your magnifying glass to find the really tiny creatures.

Step 2: Write down what you see.

Step 3: On the morning after the lawn is mowed, take a second census. (Are the same weeds still alive?) Hunt for lawn creatures again. How did they avoid the mower?

Step 4: Write down your observations.

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