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Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

This experiment will explore whether adding different substances to a gel affects its strength.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

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

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

In this experiment you will use plastic and magnets to test your local soil composition.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

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.

Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Slip some science into storm watching with a homemade rain gauge!

Analytical chemists perform chromatography to separate colors into pigments. Test the food coloring used in M&M's and Skittles candy in this fun project!

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

In this challenge, students are tasked with creating a car that can be powered by a balloon!

Make this easy composting dessert and then enjoy the yummy results!

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.