This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Help your child plant a "tea garden": a garden made of herbs for making teas.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Help your kindergarten science maven explore the water cycle without getting everything wet.

In this science fair project, students create their own miniature salt flats at home.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

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

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

This science fair project idea investigates how magnetism can defy the force of gravity.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

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

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!