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Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

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

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Demonstrate how to tell the age of an egg without having to crack it open.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.