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Unit 3 ch.1 & 2
Study Guide
| Question | Answer |
|---|---|
| Why is East Ferris running out of water but West Ferris is not? | East Ferris is using more water than there is available. West Ferris can just use rainwater. |
| Where is almost all of Earths water? | In the ocean |
| Where is most of Earth's freshwater? | frozen in Glaciers. |
| The amount of available freshwater _________ when people use more than the amount that flows into their area. | Decreases |
| People only use what kind of water? | Freshwater |
| List three things that can cause water shortages. | Drought, overuse, and pollution |
| What are three parts of Earth's system that we have discussed in this unit. | Biosphere, hydrosphere, atmosphere |
| How do drops of water form? | When enough water vapor gets cold and condenses into liquid water. |
| Where does water vapor in the air come from? | Liquid water that has evaporated. |
| How are water molecules in the states of matter spaced? | Gas molecules are very spread out and move fast, liquid molecules are a little spaced out and move slow, solid molecules are very tightly packed and don't move. |
| Water molecules are not____ or_____ when water changes from a gas to a liquid or liquid to a gas. | Created or destroyed |
| For water droplets to form, the water molecules must get ____ | cold |
| True or false. Water vapor can come from any body of water. | true |
| True or false. The water on Earth today is not the same water that was on earth hundreds of years ago. | false |
| Give an example of the hydrosphere and atmosphere interacting. | Liquid water evaporates to form water vapor in the atmosphere. |
| Give an example of the biosphere and hydrosphere interacting. | people using water |
| Engineer. | Someone who uses science knowledge to design something to solve a problem. |
| Synthesize. | To put together multiple pieces of information in order to understand something. |
| Resource. | A supply of something that is useful. |
| Explanation. | A description of how something works or why something happens. |
| Biosphere | All living things on Earth. |
| Hydrosphere. | All of the water on Earth. |
| Water vapor. | Water in the form of invisible gas. |
| Atmosphere | The air that surrounds Earth. |
| Condensation. | When a gas turns into a liquid |
| Molecule | A group of atoms joined together in a particular way |
| Evaporation | When a liquid turns into a gas. |
| System | A group of parts that work together |
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