Grades 3-5
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.
Activity
That's Heavy!
This "heavy" experiment allows students to discover that salt water sinks in fresh water.
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.
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.
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!
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.
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.
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.
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.
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!
