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Earth in The Univers
vocabulary
| Term | Definition |
|---|---|
| rotation | the spin of a body on its axis |
| revolution | one complete trip along an orbit |
| orbit | the path that a body follows around another body in space |
| axis | imaginary line connecting North and South Pole |
| phases | the different appearances of the moon due to its changing position |
| waxing | when the moon appears to get larger |
| waning | when the moon appears to get smaller |
| eclipse | an event in which the shadow of one celestial body falls on another |
| lunar eclipse | when the Earth comes between the sun and the moon and the shadow of the Earth falls on the moon |
| solar eclipse | when the moon comes between the Earth and the sun and the shadow of the moon falls on part of the Earth |
| tides | the periodic rise and fall of the water level in the oceans and other large bodies of water |
| spring tides | are the result of the moon and sun working together to exert more pull on the earth’s oceans |
| neap tides | are the result of the moon and sun working against each other’s pull |
| planets | the largest objects in the solar system, and due to the Sun’s gravitational pull, they revolve around the sun |
| atmosphere | a layer of air, made up of many layers and gases that surround the Earth’s surface keeping humans safe from the sun’s radiation |
| rocket | a machine that uses escaping gas to move upward |
| telescope | an optical instrument for making distant objects appear larger and brighter by use of a combination of lenses and curved mirrors |
| equator | imaginary line of latitude that splits the earth into two hemispheres |
Created by:
tpfannes007
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