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 |