Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

Test your friends to find out if you can replicate the placebo effect's incredible results.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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

In this project children practice the scientific method while playing with puffy paint.

Using a toy race car kids create a visual model of the Doppler Effect.

In this science fair project, young children notice and track changes in trees throughout the year.

Plants and light seem to be good buddies, but how far does the friendship really go?

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

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

In this project, a basketball containing different psi is dropped to see how well it bounces.

This activity is a fun challenge for students who have just started learning to program educational robots.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Start your toy engines -- this is going to be a fast and friction-filled race!

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.