There are lots of different substances but only just over a hundred elements. An element is a substance that is made up of only one kind of atom. The atoms in a particular element are the same as each ...

Big question. Grit, determination, hardworking, handsome, charming, funny. Teacher: Well, I guess. But you're actually made of atoms. In fact, everything is made of atoms. Presenter: It's funny, ...

Luckily, we don't have to count them one by one. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. All matter in the universe — no matter how big, ...