In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

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

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

This surprisingly good glue recipe comes from common kitchen items.

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.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

This science fair project idea examines the reason boats are shaped and engineered.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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!

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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

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

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

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.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Teach your child to dye eggs with natural ingredients from the grocery store. From pink to gold, these eggs are perfect for hiding, hunting or simply munching.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

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

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

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

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.