Showing Results for -and--old

How do organic materials become soil? This science experiment measures what materials biodegrade.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

I scream, you scream, we all scream for homemade spearmint ice cream!

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

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

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

Give your budding young observers a chance to discover simple machines at use in their own home.

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

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

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

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

This science fair project idea explores whether white light can be separated into different colors.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

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.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?