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Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

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

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!

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

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

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

How powerful is the reaction between baking soda and vinegar? Find out here!

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project idea investigates if fats add to the flavor of food.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Challenge your learner to design and build a city of their own in this creative engineering activity.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Cleaning can be a chore, but not with this sudsy experiment!

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.