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Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

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

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This project determines what category of person is most likely to be ticklish.

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Is it a square or a circle? See if you can trick your friends with this zany science project!

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

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

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

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

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.