Do different types of oil mix or stack? Find out in this science fair project idea!

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this project children practice the scientific method while playing with puffy paint.

Construct a card castle fit for a king! Treat your royal "face" cards (the kings, queens, and jacks) to the cool castle they deserve.

Use an old strawberry basket to create a decorative box for storing knickknacks, jewelry or odds and ends with this recycled craft.

In this fun science project your child will get practice following directions and getting messy as they learn all about slime!

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Take a page from Art Nouveau master Gustav Klimt and compose a shining collage.

Encourage your child to create a tribute to their past, and explore future dreams and goals with this narrative assemblage.

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

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

On a hot afternoon there is nothing better than a cold drink. Instead of making lemonade, your child can have lemon ice cubes ready to munch!

Start Father's Day off on the right foot by baking Dad a batch of scrumptious muffins packed with fruit, fiber, and heart-healthy oat bran.

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!

This Thanksgiving table runner craft isn't just fun and festive, it also helps your child build muscles for hand strength, fine motor skills, and handwriting.

This paper alternative to tie-dye is faster, easier, and (slightly) less messy, only requiring paper, white crayons, and a little imagination.

Your second grader will get great measuring practice as she helps you make this rich and creamy green dip!

Light up the sky with this lotus lantern, a perfect way to explore Buddha Day.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

This pumpkin dessert recipe tastes like pie but looks like a no-bake cookie.

For some good "green" fun, pull out your blender. A spinach smoothie?! You better believe it! And kids will not only slurp it up, they"ll beg for seconds.

Let your young chef whip up some cheer in the kitchen with these tasty and adorable chocolate trees snacks.