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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.

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

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

In this project students experiment with making music using only glasses of water.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this science fair project you will make a model of a cell membrane using very simple material.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

In this design challenge, your child will create a parachute for a small toy using typical household items.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

In this design challenge, your child will make a bottle rocket using typical household items.

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.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

This science fair project idea examines which type of insulation holds in the most heat.

This science fair project idea investigates the hardness property of minerals.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.