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1:1 Astronomy
1:1 Earth in Space
| Question | Answer |
|---|---|
| astronomy | study of outer space and objects in it |
| revolution | the time it takes an object to travel around its sun. |
| orbit | The path an object takes as it revolves around another object. Earth's orbit as it travels around the sun is an ellipse. |
| rotation | the spinning motion of Earth or any object in space, like a top on its axis.(Earth orbit = 24 hours) |
| Seasons/Days | These changes are caused by the change in the angle of the sunlight hitting the Earth as it travels around the sun. |
| Axis | The imaginary line around which the earth rotates, extending through the poles. |
| spherical | shaped like a ball or a globe |
| Solstice | The two days of the year on which the noon sun is directly overhead at either 23.5 degrees S or 23.5 degrees N. |
| Equinox | The two days of the year on which neither hemisphere is tilted toward or away from the sun. |
| Vernal Equinox | The day of the year that marks the beginning of spring in the Northern Hemisphere. |
| Autumnal Equinox | The day of the year that marks the beginning of fall in the Northern Hemisphere. |