Young scientists develop a hypothesis, conduct an experiment, and then revise their hypothesis to find out which common household liquids dissolve candy corn.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Your fourth grader can have fun and get creative this winter by creating a colorful winter weather collage.

Make this fluffy, fun feather pin as a unique fashion statement or a trendy gift for a lucky recipient.

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

Your child can learn more about traditional Irish cooking this St. Patrickâs Day by making some apple barley pudding â a real tasty treat!

Repurpose those plastic shopping bags hiding in your house into a fun and exciting decoration your child can hang in her room!

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Give your fourth grader a lesson in making blankets, and he'll be able to give the gift of warmth. Fleece blankets are especially fun to make, and they're cozy!

Teach your fourth grader how to craft her own decorative felt eggs, a perfect way to symbolize spring and new beginnings!

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Help your 4th grader learn how to make a topographic map and strengthen key grade level social studies and math skills in the process.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

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

Your child can re-use and re-purpose old seeds and paper into something new: decorated paper that can be planted!

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Air-drying clay gives your young artist the opportunity to make a simple bowl that mimics the beauty of an autumn leaf.

Decorate with a banner made from paper, clover shapes and buttons to celebrate spring or St. Patrick's Day!

Start a unique tradition with your fourth grader; bake and paint one-of-a-kind Olympic pins--out of salt dough!

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Celebrate Kwanzaa with your fourth grader, or introduce them to a new cultural practice, by showing them how to weave a Kwanzaa mat out of an ordinary paper bag!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Valentine cookies are a classroom staple on Valentine's Day. Make a batch of delicious valentine cookies with your child this February.

Ready for a game that's mostly about strategy with a little luck thrown in for good measure? Make math fact practice exciting and start rolling the dice!