Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

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

Make a lei and bring a touch of the tropical lifestyle into your home!

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

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

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

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.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Teach your child about recycling and gardening as she re-uses an empty plastic milk gallon jug to craft a swan-shaped plant container!

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Find out which kind of bubble wrap fares best when put in impact.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!