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.

Introduce decimals and place value with this fun math card game for fourth grade students.

To practice place value, here's a fun hands-on activity to get your child flipping through place value with ease!

This math game helps fourth graders improve their understanding of positive and negative integers in a fun way.

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

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Made to humorously resemble reindeer droppings, these simple to make and yummy to eat holiday desserts are destined to become a family favorite.

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.

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.

Most of us are familiar with haiku, but the tanka is an even older form of Japanese poetry. Learn to write a tanka poem with this activity.

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!

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

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.

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

Challenge your child to a word count war, and practice good note-taking skills at the same time!

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

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

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

Play multiplication war, a fun card game, with your child and before long those annoying multiplication facts will be part of her mathematical skill set.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Work on finding means and medians in this fifth grade math card game.

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

Teach your fifth grader an important math concept with this quick and simple activity that shows them how to divide whole numbers by fractions.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Make this paper mache gargoyle for a lesson in Medieval architecture and sculpture.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.