This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

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

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Construct and experiment with a periscope using reflected light rays to gather an image.

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

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

By using static electricity generated from their body, a child can cause a small fluorescent lamp bulb to light up!

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

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

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

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

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

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

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