This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

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

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

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.

Making your own glass cleaner is easy, effective and inexpensive!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

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.

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

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

Introduce your child to the wonders of colorful chemistry with this simple food coloring project.

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

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

How powerful is the reaction between baking soda and vinegar? Find out here!

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.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!