This science fair project idea demonstrates that plants give off water.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

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.

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

Discover whether cold or hot water from the faucet will boil faster on the stove.

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

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

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.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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

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.

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

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

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

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Teach your child how butter is created by shaking up cream the old-fashioned way.