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

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!

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

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

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

By using static electricity generated from their body, a child can cause a small fluorescent lamp bulb to light up!

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 game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

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 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

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.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

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.

Make a spring collage with your child to get them outside and those creative juices flowing!

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

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?

In this activity your child will create their very own marble maze!

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.

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 teaches students the differences between fruits and vegetables.