Wondering how to help your child get a handle on prime numbers? Turn her into a prime number hunter with this hundreds chart activity.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

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

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Here's a fun, geometric puzzle activity that will capture your child's interest and strengthen his number awareness and graphing skills.

In this activity, your child will get a review of addition, subtraction, multiplication and division using classic domino pieces.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Competitors go head-to-head only this time it's a race to figure out the lowest common multiple of two numbers; an important step to working with fractions!

What happens when colored beams of light mix? You might be surprised.

This easy indoor activity teaches kids how to mix kitchen ingredients into watercolor paints, while giving a crash course in color-combining.

Here's a fun activity that will have your child deciphering directions for sandwich making, and learning about sequence along the way!

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Teach your child how butter is created by shaking up cream the old-fashioned way.

Make learning how to calculate surface area easy and fun using this simple hands-on approach.

Want to ensure that your child's math knowledge stays sharp? This mean, median, and mode game is the perfect way to reinforce these essential math concepts.

Test your kid's knowledge of presidents one through forty-four with this fun and educational matching game!

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

Do different types of oil mix or stack? Find out in this science fair project idea!

Toss playing cards into boxes while you practice addition and multiplication with decimals in this fun, fifth grade math game.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Choose a design that is as simple or as intricate as you like and create a stencil that you can use over and over again.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

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.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Encourage your child to eat nutritiously by having them build this delicious summer fruit cone!

Challenge your kid to use his knowledge about percentages in this fun game. Just roll the dice and race to calculate the percentage.

Use a deck of playing cards to practice place value and other math concepts with your upper elementary child!

Explore the math concept of probability with your fifth grader on "lucky" St. Patrick's day this year!