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Grades 3-5

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Classroom Activity

Making Mosaics

Vivid mosaics of stone and glass cubes—some enhanced with precious gold leaf—once gleamed from the floor, walls, and ceiling of the Petra Church. Learn how to make your own colorful masterpiece.

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Activity

That's Heavy!

This "heavy" experiment allows students to discover that salt water sinks in fresh water.

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Article

What's the Big Idea About Genetics?

Did you know that you have more than 30,000 genes? Or that DNA carries all the information a cell needs to make you uniquely you? Take a look at the science of where it ALL begins.

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Activity

What Do You Know About Genetics?

How much do you know about what makes you you? Test your genetics knowledge with this interactive quiz. Then, take a nurturing look at the answers when you're done.

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Activity

Make Your Own Astronomy Stationery

Looking for an easy way to add some star power to your letters and notes? These ready-to-print letterheads are astronomical in every way but their cost! 

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Activity

Make Your Own Genetics Stationery

Your DNA carries your unique imprint. Shouldn't your stationery? Add your name and address—and anything else you want to say—to these colorful letterheads.

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Activity

What Do You Know About Biodiversity?

Invasive species, endangered species, the Endangered Species Act—when it comes to biodiversity, is your knowledge thriving or close to extinct? Find out with this interactive quiz. 

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Activity

Make Your Own Biodiversity Stationery

Honor extinct animals, send a desert snapshot, or let an emperor scorpion deliver your message. Just add your name and address to these colorful stationery files. 

Light-Quest

Activity

Light Quest

Particles and waves, reflection and refraction—how enlightened are you about the subject of light? Find out with Light Quest!, a kid-friendly trivia game.

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Activity

Space Jell-O

Thanks to Einstein, we know that space bends around anything that has mass. Need help bending your mind around this concept? Mix up some Jell-O, and play with your food!