Matter is made up of very small parts called atoms. Atoms can combine in different numbers and in different ways to make different molecules. Atoms and molecules make up all of the different ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Scientists have trapped and observed individual atoms for what they say is the first time ever. The mechanism is a kind of supercooled atom rodeo, where individual atoms at nearly absolute zero are ...