In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

Science fair project that examines search engine optimization, internet search trends using a statistical study of searched keywords.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

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

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.

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 science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

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

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

This project involves the programming and development of a 3D Rubik's Cube application using C++.

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

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

Science fair project that creates fog using bottles of hot and cold water.

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

This project involves the development of a website using free software online to promote the value of science.

Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.

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

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

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

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

Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.