Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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

This clay "painting" activity encourages and supports creative development and critical thinking skills.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

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.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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!

In this design challenge, your child will make a bottle rocket using typical household items.

Cleaning can be a chore, but not with this sudsy experiment!

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!

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

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

Have your child kick off their summer vacation by making a miniature water slide!