"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." We’re willing to bet it’s been a minute since you prepared slides in a science lab. If your kid’s back-to ...

Eight-year-old S. Hariraj is a Foldscope devotee. He's used it to look at the milk from the cows his parents raise. Though the milk looks creamy, the Foldscope reveals a world of microorganisms. "It ...

We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › Hoping your kids will spend more time outdoors this spring? If you want them to see the ...