This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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

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.

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.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

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.

Using a toy race car kids create a visual model of the Doppler Effect.

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.

Ever wonder how those kooky kazoos work? Get to know the science behind this silly instrument by making your very own kazoo!

The alphabet is a big learning milestone for most kids. Help your child learn alphabetical order by making a food list in this fun Thanksgiving activity.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

All you need to put together this guitar is an old shoebox. Soon your kid will be rocking out while saving room in the landfill.

On Father's Day, delight Dad--and stretch your early reader, too!--with this adorable ABC book of "Fun with Dad."

Palindromes are a fun and silly way to practice writing skills. Challenge your child to come up with as many palindromes as she can in this crazy activity!

Get active at home by pretending to be different animals! Use this fun and engaging activity to move your body, get silly, and practice gross motor skills.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Using water, corn syrup, and sequins, your child can create a unique art project while exploring what happens when different liquids are mixed together!

Homophones are those tricky little words that tend to confound early learners. Help your second grader ace the challenge with this outdoor game.

This valentine bag craft makes a chic little pouch that holds cards and treats. Fall in love with this valentine bag craft this February.

Help your second grader understand compound words by doing this fast, goofy three legged race.

Let your child catch you making deliberate errors in this silly game that promotes serious learning about punctuation.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Celebrate African heritage by making an African flag banner. This fun, culturally-inspired art project is perfect for Black History Month.

If helping your child learn parts of speech makes you want to take a nap, try this exercise. It's a sure way to keep those creative juices flowing.