| A | B |
|---|
| Mass | The measure of the amount of matter in an object |
| Newton | The standard unit for the weight of an object |
| Earth Science | The general area of science that studies the processes that change the Earth's surface |
| Astronomy | The branch of Earth science that helps scientists understand Earth's origin |
| oceanography | A study of life processes in Earth's ocean |
| Law | A "rule of nature" that describes the behavior of something in nature |
| Ten | The base unit for all SI measurements |
| Atom | Basic unit of matter |
| Neutrons | Particles without an electric charge in the atom's nucleus |
| Protons | Positively charged particles within an atom's nucleus |
