| A | B |
|---|
| Property | a way to describe matter, such as color, shape, odor, and hardness. |
| Chemistry | the scientific study of what matter is made of and how it reacts when it comes into contact with other matter. |
| Physics | the scientific study of what energy is and how it interacts with matter. |
| Element | matter that cannot be broken down into simpler substances. |
| Periodic Table of Elements | organized chart that displays all the elements along with important information about the element |
| Atom | the smallest part of an element. It has 4 main parts; nucleus, electrons, protons, and neutrons. Every _____ has the same number of electrons and protons. |
| Electron | a part of an atom that has a negative electrical charge and is found outside the atom's nucleus |
| Neutron | a part of an atom that has no electrical charge and is found inside the atom's nucleus |
| Proton | a part of an atom that has a positive electrical charge and is found inside the atom's nucleus |
| Matter | anything that has mass or takes up space. |
| Nucleus | central core of the atom. Holds the protons and neutrons. |
| Solid | matter that has a definite shape and volume |
| Liquid | matter that has a definite volume but not definite shape |
| Gas | matter that has not definite shape or volume |
| Compound | a substance that is formed when the atoms of two or more elements join together chemically. |
| Mixture | a substance made of two or more elements or compounds that are mixed together but NOT chemically combined |
| Solution | a kind of mixture in which one substance dissolves or seems to disappear, into another substance |
| Density | the measure of how much matter something has for its size |
| Evaporation | when a liquid becomes a gas |
| Condensation | when a gas becomes a liquid |
