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

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!

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.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Here's a science activity to help your child investigate how seeds are designed to travel.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Do different types of oil mix or stack? Find out in this science fair project idea!

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

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.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.