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

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.

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

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

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

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.

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.

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

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.

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 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.

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

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

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

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.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

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.

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.

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

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

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

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.

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

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