This science fair project idea produces sounds by creating vibrations using different objects.

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

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

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

Make environmentally friendly, chemical-free toothpaste using one of the most common, inexpensive pantry staples in the American kitchen: baking soda.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Encourage your child to explore color and its mood-altering effects by creating his own self portrait using only warm or cool colors.

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

These sparkling earrings look fancy but they're super simple to make using inexpensive craft items.

Make learning how to calculate surface area easy and fun using this simple hands-on approach.

This project is a great way to explore variations in how to paint using watercolor.

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

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

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

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

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

Using wholesome, natural ingredients like oatmeal, honey and raisins your child can make homemade granola bars!

Using only straight-line sewing, your fourth can create a nifty felt pencil case perfect for his busy life.

Using an empty plastic bottle, your child can create a newfangled version of this African percussion instrument.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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

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

Have fun making recycled paper using scraps of used paper in your home with this hands-on project.

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

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

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

Got a kid who loves fashion? Help her develop her own unique style with this tie-dye project using natural dyes.

Challenge your fourth grader to try to recreate the geography of her state using just flour, salt, and water.

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