In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Help your child make a beautiful homemade sandcastle that will last!

Make edible amber fossils with your second grader to explore the fascinating world of science!

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

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

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

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

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

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

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.

Create a self-portrait from natural materials in this collage craft activity!

Slip some science into storm watching with a homemade rain gauge!

In this activity, your child will be challenged to make a tower using paper cups.

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

Use pepper and soap to discover some fun facts about the properties of water.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

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

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

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

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

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