This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

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.

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

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.

This science fair project will help students learn about non-vascular plants, such as mosses.

This science fair project idea explores whether talking to a plant will help it grow.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

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

This science fair project idea examines liquids of different densities.

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.

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

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

This science fair project idea produces varying pitches of sound.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

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

This science fair project idea researches the effects of acid rain on plant growth.

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

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

The objective of this science fair project is to analyze the effects of salinity and temperature on 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.

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

In this science fair project, students make their own rain gauge to measure rainfall.

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

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

This science fair project idea investigates how magnetism can defy the force of gravity.