How do organic materials become soil? This science experiment measures what materials biodegrade.

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

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

Have your child make a holiday scarf with inexpensive materials, no sewing required!

Create a haunted house from upcycled materials in this lively craft project!

Get inspired by nature and use recycled materials to create unforgettable pencil holders in time for the back to school season.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

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

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

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.

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

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

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

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

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.