What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

This science fair project investigates why the number of visible stars changes from place to place.

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.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

This science fair project idea investigates how the shape of an object affects drag.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

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

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

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.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Learn all about balance and motion as your child designs a corn maze!

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.