In this activity, you'll perform an experiment on a cardboard tree with water, salt, and liquid bluing. Once you see the salt crystals blooming on the tree--which once started in the liquid as the tree's "roots," you'll witness capillary action in, well, action! The IF/THEN® Collection is the largest free resource of its kind dedicated to …
From Cartilage to Bone We use our bones to run, jump, and play every day! - But do you know what makes our bones hard and strong? HealthStart uses science to show how the things we do and eat daily impact our health. Bones are made of flexible cartilage, like what is in your nose …
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Astronauts orbiting the Moon in the Gateway spaceship will need to recycle water. You can make a water filtration system with a 2-liter bottle and other easy-to-find materials. Use your filter, then test your water to see how clean it is! Heavy Lifting is part of the NASA STEM: Forward to the Moon Activity Guide. These …
A return to 8-bit graphics! Learn how “retro” games get their look and design a unique pixelated character.
