Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Take paper football to the next level by creating a "field" with objects from around the house. A great indoor and rainy-day activity.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Here's a hands-on activity you can do with your fourth-grader to practice measurement and directly apply the concept of area.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.