In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

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.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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 project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

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