| Question | Answer |
|---|---|
| What is the chemical formula of water? | H2O |
| The tightness across the surface of water is called what? | Surface Tension |
| The combined force of attraction between water molecules and surrounding materials is called what? | Capillary Action |
| What are the three main phases of matter? | solid, liquid, gas |
| What phase is water in when it takes the shape of its container? | liquid |
| What kind of charge does water have? | electrical |
| What phase is water in when it has the most energy? | gas |
| Water molecules packed tightly together and have a definite shape is in what phase? | solid |
| Name the phase change – gas to liquid? | condensation |
| Name the phase change – liquid to gas? | evaporation |
| What is the property of water that causes it to stick to other water molecules? | cohesion |
| When water sticks to other substances | adhesion |
| Water dissolves most substances so it is considered a universal __________. | solvent |
| Name the phase change – solid to liquid? | melting |
| Name the phase change – solid to gas? | sublimation |
| Name the phase change – liquid to solid? | freezing |
| In this phase water molecules flow over and around each other | liquid |
| Water molecules have the least energy in what phases? | solid |
| What are water molecules made up of? | Two positive hydrogen atoms and one negative oxygen atom. |
| Phase changes are a result of the absorption or release of _____________ energy | heat |
