This science fair project investigates why the number of visible stars changes from place to place.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

This science fair project idea identifies trees using a dichotomous key.

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.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

This project compares the strength of one, two, and three-ply toilet paper.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.