Bedtime Math

Our friend Parker M. asked, how much does the ocean weigh? Well, a box of water 1 foot wide, 1 foot long and 1 foot tall would weigh 62 1/2 pounds! Scientists guess that there are

You may not believe it, but the teeny frog on that coin is real. It’s smaller than a dime or a Cheerio. Two scientists, Christopher Austin and Eric Rittmeyer, were exploring a tropical forest when they heard a weird sound. They ...

If you do things really, really fast, maybe you want to try cup-stacking. People race each other to stack regular old plastic cups into pyramids without knocking anything over. In official “speed-stacking,” players use 12 cups to build a 6-cup pyramid with 2 little 3-cup triangles on either side. Then they take down the cups and build two 6s, then a 10-cup pyramid.

It’s easy to kick a soccer ball, since it’s so much smaller than you. But try kicking one as tall as your bedroom ceiling! This page shows Trackhoe Soccer, where cars and trucks play giant soccer with an 8-foot-high ball. Cars and trucks can’t kick, of course, so they drive, s...

It’s cozy to hang out on a couch with a pet. But sometimes our furry friends can get bossy, and smoosh you into the corner with their tail. So why not give cats their own couch? People have been “crocheting” cat couches like the one here, by looping yarn into little knots to make fabric. It took one crocheter about 6 hours and 350 yards of yarn to make this couch, but now tha...