A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

In this project, you will observe and record changes in sunspots over two weeks.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This science fair project idea determines the probability of a coin landing heads or tails.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.