What colors make up a rainbow?

The largest plant in the world is said to be the General Sherman Tree, a giant sequoia in Sequoia National Park, California. The tree is about 272 feet tall and more than 100 feet in circumference. It is about 3,500 years old.

Hailstones begin as frozen raindrops or pellets of snow in a thunderstorm cloud. These “hail embryos” are carried by updrafts to a part of the storm where droplets of water exist in a supercooled state (that is, in liquid form at temperatures below freezing). These supercooled droplets freeze into ice when they strike the surface…

Dinosaurs lived during the Mesozoic era, 225 million to 65 million years ago. By the end of that era, all Archosauria (or “ruling reptiles”), except crocodiles, had died.

The Consumer Product Safety Commission reports that the five most dangerous sources are: stairs, glass doors, cutlery, glass bottles and jars, and home power tools.

The average body has 14 to 18 square feet of skin.

Sometimes likened to the shell that covers an egg, the layer of rock or crust that covers the surface of the earth is, on average, 22 miles thick.