This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

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

Help your kindergartener identify and sort eight different kinds of common seeds on this "seed wheel" plate you can use all growing season.

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

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

This surprisingly good glue recipe comes from common kitchen items.

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

Help young learners discover why catÃs eyes glow in the dark with this simple experiment

This science fair project idea tests whether tall people have the ability to swim faster than people of average and shorter heights.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.

Detail the chemical properties, nutritional value, medicinal effects of garlic, Write a detailed report, prepare recipes.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Find out whether a longer airplane will fly farther or a wider paper airplane.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Did you know magnifying glasses are magic? This hands-on activity has kids using magnifying glasses to engage with the world around them and look close to examine what they find.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

This project will explore whether people are emotionally susceptible to suggestions of both humor and sorrow.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.