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Science Vocab List 17
Terms in this set (19)
The path of an object as it revolves around another object in space.
A solid shape that is perfectly round like a ball. No faces, edges, or vertices.
an imaginary line about which a body rotates.
The spinning of Earth on its axis.
The movement of an object around another object.
A elongated circle, or oval shape, the shape of the planets orbit.
Time when the Sun is farthest from the equator.
The two days of the year on which neither hemisphere is tilted toward or away from the sun.
The layer of hot, solid material between Earth's crust and core.
The changing appearances of the Moon as seen from Earth.
A moon that is completely dark because it's unlit side is facing Earth.
(of the moon) pertaining to the period during which the visible surface of the moon increases.
moon phase when the entire side facing Earth is illuminated.
(of the moon) pertaining to the period during which the visible surface of the moon decreases.
Occurs when the Moon passes directly between the Sun and Earth and casts a shadow over part of Earth.
the blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon.
Dark, flat areas on the moon's surface formed from huge ancient lava flows.
A ball of frozen dust and rock that orbits the sun and has a tail that glows.
a hollow left on the surface of the Moon caused by an object striking its surface.
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