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In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This project compares the strength of one, two, and three-ply toilet paper.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Find out whether a longer airplane will fly farther or a wider paper airplane.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

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

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

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

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

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

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

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

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.

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