Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

This biodiversity project examines the biodiversity in your own backyard.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

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

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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.

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.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

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

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

This project compares the strength of one, two, and three-ply toilet paper.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Test whether plants can grow without sunlight and water.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Determine if gender affects the ability to identify different smells.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!