Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

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

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

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.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

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.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

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

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This project investigates the affect of storage temperature on microwave popcorn.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

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

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

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

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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

This science fair project idea demonstrates that plants give off water.

This project examines what types of objects burn and which burn faster and cleaner.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.