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Globe at Night
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

Incredible Shrinking Shapes
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In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers.

Tired Weight
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Yes, you can weigh your car by figuring out your wheel's tire pressure combined with the "tire's footprint." You'll need someone with a car, driver's license, and safety in mind.

Scaling an Atom
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In this activity, learners make a scale model of an atom to see how big or how small an atom is compared to its nucleus. Learners will realize that most of matter is just empty space!

Relative Speed of Dinosaurs
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In this activity, learners interpret three trackways and use measurements and a formula to infer the relative speed of dinosaurs.

Greeting Card Boxes
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In this activity, learners make cool boxes out of old (or new) greeting cards or postcards.

The Parachuting Egg
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In this activity, learners work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height.