How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Try this chemistry experiment with your curious kid and get some "shocking" results!

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

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

An home science experiment for older students that teaches about the science behind heat.

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

This science fair project idea compares biodiversity between drops of water.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This science project teaches students to classify different shapes of leaves.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This science fair project teaches students the differences between fruits and vegetables.

This science fair project idea investigates how color affects temperature.

This science fair project idea explores the egg's thin membrane.

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

This science fair project examines how seeds hitchhike on animals and clothing.

Take a dive into the candy jar with this yummy science experiment.

This science fair project idea produces varying pitches of sound.

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

This science fair project idea explores the different properties of matter.

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

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This science fair project idea examines the reason boats are shaped and engineered.