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Earth
Schrift - wk 3.1 Earth
| Question | Answer |
|---|---|
| Astronomy | the study of the moons, stars and other objects in space |
| Axis | an imaginary line that passes through Earth's center and the North and South Poles, about which the Earth rotates |
| Rotation | The spinning motion of a planet about its axis |
| Revolution | The movement of an object around another object |
| Orbit | The path of an object as it revolves around another object in space |
| Phase | One of the different shapes of the moon as seen from Earth |
| Eclipse | The partian or total blocking of one object by another |
| Solar Eclipse | The blocking of sunlight to Earth that occurs when the moon is between the sun and Earth |
| Lunar eclipse | The blocking of sunlight to the moon that occurs when Earth is directly between the sun and moon |
| Tide | The rise and fall of the level of water in the ocean |
| Gravity | The attractive force between two objects, how much force depends on their masses and the distance between them |
| Telescope | A device built to study distance objects by making them appear closer |
| Crater | A round pit n the moon's surface |
| The cause of seasons | Tilt of the Earth |
| atmosphere | the layer of air that surrounds the Earth like a blanket, is made up of a mixture of gases plus small amounts of tiny solids and liquids, and keeps temperatures on Earth just right to support life. |
| greenhouse effect | a natural heating process that occurs when certain gases (carbon-dioxide) and water vapor in Earth's atmosphere trap heat. |
| global warming | an increase in earth's average temperature that has occurred over the last 100 years because too much carbon dioxide stops the Earth’s heat from going through the atmosphere and into space |
| Why does earth have seasons? | because the earth is tilted on its axis, causing parts of earth to be closer to the sun at different times throughout the year |
| Climate | the pattern of weather that occurs in an area over many years |
| the time it takes the Earth to revolove around the sun on time | one year |
| How many days are in one year? | 365 |
Created by:
kschrift
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