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!

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

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

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

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.

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.

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.

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

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

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.

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!

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

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.

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

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!

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

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

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

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

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

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

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

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

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

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

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