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

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.

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

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

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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!

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

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!

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

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

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

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 about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

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

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

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

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project idea examines whether boys and girls differ in reflexes.

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

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 project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

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

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