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Science (1-1)
The Atmosphere- The Air Around You
| Term | Definition |
|---|---|
| Earth's atmosphere make conditions suitable for living things by: | - Providing oxygen and other gases needed to live - Keeps Earth's surface warm enough for water to exist as a liquid - Protects living things from's sun's radiation - Prevents Earth's surface from being hit by meteoroids |
| The two main gases in the atmosphere are: | - Nitrogen (78%) - Oxygen (21%) |
| Nitrogen is composed of: | - Two Nitrogen atoms |
| Organisms must have ____________ to grow and repair body cells. | - Nitrogen |
| Plants must absorb ______________ from soil and animals must eat plants or other animals to obtain ______________. | - Nitrates - Nitrogen |
| Oxygen is composed of: | - Two atoms of oxygen |
| _________ is used to release energy from food and for fuel when things burn. | - Oxygen |
| Plants and animals take oxygen directly from: | - The air |
| Ozone is composed of: | - Three oxygen atoms |
| Carbon Dioxide is composed of: | - One atom of carbon - Two atoms of oxygen |
| __________ use carbon dioxide to produce food. | - Plants |
| Carbon Dioxide is released by: | - Burning of coal and gasoline - By animals as a waste product |
| Scientists believe: | - Rising Carbon Dioxide levels are raising Earth's temperature. |
| ___________ is present in air that is not dry. | - Water Vapor |
| Water Vapor is composed of: | - Two hydrogen atoms - One atom of oxygen |
| Water Vapor forms: | - Clouds that later fall as precipitation |
Created by:
saintiwildcat
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