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Unit 3
Chapters 1 and 2 - Study Guide
Question | Answer |
---|---|
Why is East Ferris running out of water? | East Ferris is running out of water because they are using more water than is going into the groundwater reservoir. East Ferris does not receive much rain and therefore has to rely on the water in the groundwater reservoir. |
Why is West Ferris not running out of water? | West Ferris receives much more rain than East Ferris. The people of West Ferris do not have to use water just from the groundwater reservoir, they can use water from the rain that falls there. |
Where is almost all of Earth's 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. | Droughts, 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, and solid molecules are very tightly packed and don't move. |
Water molecules are not or when water changes from gas to liquid, or liquid to gas. | Created / 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 the atmosphere interacting. | Liquid water evaporates to form water vapor in the atmosphere. |
Give an example of the biosphere and the 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. |