Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

Engineers in training can get started with this simple wheel-and-axle construction activity.

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

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

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

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.