| A | B |
| A material that always has the same makeup and properties wherever it is found is called what? | substance |
| A substance that cannot be broken down by simple means into any other substance is called what? | element |
| What must be applied in order to get a change of state to occur? | energy |
| What is an example of a solid? | ice |
| What is an example of a liquid? | water |
| What is an example of a gas? | water vapor |
| What do we call a kind of matter made up of two or more elements? | compound |
| What is the smallest particle of an element that has the same properties of the element? | atom |
| What do we call the one or two letters that stand for the name of the element? | chemical symbol |
| What is the change of state from a gas to a liquid called? | condensation |
| What is the change of state from a liquid to a solid called? | freezing |
| What is the change of state from a liquid to a gas called? | evaporation |
| What is the chemical symbol for water? | H2O |
| Matter cools down when it loses what? | energy (heat) |
| When energy (heat) is added to matter, what happens to the particles? | the particles move faster and spread apart |
| What happens to the particles when heat is taken away from matter? | The particles move slower and get closer together |
| What is an example of an element that is often described as a precious metal? | gold |
| Elements are the what of matter? | building blocks |
| Sodium and chlorine combine together to form the common compound called what? | salt |
| In which state of matter can molecules change their shape and volume? | gas |