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Section 1
Key Ideas
- Astronomy is the study of the moon, stars, and other objects in space.
- Earth's rotation on it's axis causes day and night.
- One complete revolution of Earth around the sun is called a year.
- Earth has seasons because it's axis is tilted as it revolves around the sun.
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Astronomy is the study of the moon, stars and other objects in space. |
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| An axis is most commonly referred to as the imaginary line that passes through the North & South Poles, about which the Earth rotates. |
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| Rotation is the spinning motion of a planet around it's axis. |
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| Revolution is the movement of an object around an object. |
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| Orbit is the path of an object as it revolves around an object. |
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| Latitude is a measurement of the distance from the equator, expressed in degrees north or south. |
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Equinoxes:
VERNAL AND AUTUMNAL...
what are they? |
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Vernal Equinox is the day of the year that marks the beginning of spring in the northern hemisphere.
Autumnal Equinox is the day of the year that marks the beginning of fall in the northern hemisphere. |
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KNOW THE PHASES OF THE MOON
IMAGE ON BACK |
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