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Discover fun, hands-on STEM projects you can try at home or in the classroom—absolutely free! These downloadable project cards feature past favorites from our STEM Discovery Boxes. Each card includes simple instructions and a materials list so you can jump right into experimenting, building, and exploring science with your kids.

DRAW-BOT

Build a wiggly robotic drawing machine as you learn about ENGINEERING and the power of CIRCUITS. Experiment with BALANCE as you create one-of-a-kind artwork.

BREAK-A-GEODE GEOLOGY

Learn about GEOLOGY and the study of IGNEOUS and SEDIMENTARY ROCKS by breaking open your very own GEODE. Discover the mystery of the QUARTZ CRYSTALS that have grown inside!

EXPLORE MAGICAL HYDROPHOBIC SAND

Explore the science of HYDROPHOBICS while being mesmerized by its water- repelling power! Can you put sand in water and have it remain DRY when you take it out? Find out with magical sand!

PHOSPHORESCENT DISAPPEARING GLOW ART

Explore the science of HYDROPHOBICS while being mesmerized by its water- repelling power! Can you put sand in water and have it remain DRY when you take it out? Find out with magical sand!

BACTERIA ALL AROUND YOU and GLITTER GERMS

Where are germs hiding? Visually see the BACTERIA that can grow from the germs lurking all around you! How do GERMS travel and how do you get rid of them? Simulate the transfer of germs!

SMARTPHONE MICROSCOPE WITH 30X ZOOM

Learn about LENSES and REFRACTION. Transform your smart device into a lighted MICROSCOPE. Record live video and take photos of the amazing MICROSCOPIC world that is hiding all around you.

NON-NEWTONIAN MELTY MATTER

Is it a solid? A liquid? Or Both? Learn about NON-NEWTONIAN FLUIDS, SUSPENSION and VISCOSITY with this melty, gooey matter.

NEON-STYLE LAMP

Create your very own custom ELWIRE neon- style light. Learn about PHOSPHORUS and ELECTROLUMINESCENT WIRE while weaving a unique glowing lamp.

BUILD AN ELECTRONIC ILLUSION MACHINE

Learn about artist Marcel Duchamp and his DUCHAMP-ROTORELIEF OPTICAL ILLUSION machine. Can your brain be fooled into seeing something that isn't really there?

EXPLORE THE SCIENCE OF SHRINKING

Get creative and explore CHEMISTRY and MASS with flexible sheets of POLYSTYRENE plastic which, when heated, SHRINK to half their size, and become nine times THICKER-without altering their color or shape!

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