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Unit 4-Earth's Sys
Unit 4-Earth's System
| Question | Answer |
|---|---|
| What are characteristics of saltwater? | makes up 97.5% of Earth's water, contains large amounts of salt and fills the oceans |
| What are characteristics of freshwater? | can be found in rivers, lakes, streams, ice caps and ground water |
| What are characteristics of both saltwater and freshwater? | found in estuaries, forms in brackish water and is part of the water cycle |
| How many oceans does Earth have? | 5 |
| The process by which water returns to Earth in the water cycle is called? | precipitation |
| What source of energy is part of the water cycle? | the sun |
| What state of matter is water vapor in the atmosphere? | gas |
| What major source of energy is responsible for ocean currents and the water cycle? | the sun |
| What is the surface of the Earth shaped by? | ice, water and wind |
| What natural forces help to shape Earth's surface? | glaciers, water and wind |
| What forms during deposition? | a delta |
| What are mounds of sand that form on beaches and in deserts called? | dunes |
| What is NOT needed to form a sand dune? | rain |
| What IS needed to form a sand dune? | large supply of sand, windspeed and good location |
| What is a steep sided valley formed by the erosional force of running water called? | canyon |
| Aquifer | a natural underground water source |
| Condense | to turn from a gas into a liquid |
| Evaporate | the process in which matter changes from a liquid to a gas |
| Precipitation | water that is released from clouds in the sky; includes rain, snow, sleet, hail, and freezing rain |
| Watershed | a region in which all precipitation and surface water collects and drains |
| Transpiration | the process in plants by which water is taken up by the roots and released as water vapor through stomata in the leaves |
| Weather | the properties of the atmosphere at a given time and location, including temperature, air movement and precipitation |
| Climate | the current or past long-term weather conditions characteristic of a region or the entire Earth |
| Ecosystem | all the living and nonliving things in an area that interact with each other |
| Ground water | water stored below Earth's surface in soil and rock layers |
| Surface water | water that collects on the surface of the ground |
| Tributary | a river or stream flowing into a larger river or lake |
| River | big body of water flowing through land on either side |
| Ocean | a large body of salt water that covers most of Earth |
| Saline water | -(salt water) is water that contains a high concentration of dissolved salts |
| Glacier | a large mass of ice resting on, or overlapping, a land surface |
Created by:
Pamela Hebert
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