This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

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

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project idea explores substances that cause a bubble to last longer.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

The project investigates which soft drink is worse for your teeth by observing the affect of soft drink on limestone.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This project tests the hypothesis that dark colors absorb more heat than light colors.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

This science fair project idea investigates how color affects temperature.

The project determines which laundry detergent is best for cleaning clothes.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

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

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.