In this fun activity, your child will create their very own solar oven to bake s'mores!

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

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

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

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

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

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

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Test whether plants can grow without sunlight and water.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

In this activity your child will create their very own marble maze!

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!