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Earth, the Moon, and Sun
Terms in this set (31)
to spin around
area or imaginary line that a spinning object turns around
to move in a circular or nearly circular path around something else
the path an object follows as it revolves around another object
a hollow area or pit in the ground
one of the different shapes the moon appears to take as it travels around the earth
a shape like a flattened circle
As Earth moves around the Sun, it spins or _____.
As Earth Rotates, the part that is facing the Sun has _____.
The real or imaginary line that a spinning object turns around is an _________.
Earth's axis is an imaginary line drawn between the North and South _________.
Scientists think that the tilt of Earth's axis was caused by _______ _________ hitting Earth.
While Earth is spinning on its axis, it also _______, or moves in a circular path, around the Sun.
Earth's trip around the Sun takes _____________.
365 1/4 days or one year
The path Earth travels around the Sun is called an _______.
Earth's orbit is shaped like an ________, or flattened circle.
Earth's ______ causes seasons because of the different ways the Sun's rays strike parts of Earth.
From Earth, the Moon looks big because it is _______ to Earth.
the Moon is about ______ as wide as earth.
The force that holds things on the ground and determines how much they weigh is ________.
Gravity is _______ on Earth than on the Moon, so things weigh _______ on Earth than on the Moon.
Instead of making it's own light, the Moon _______ the light of the Sun.
The Moon revolves around ________.
The Moon is dusty and lifeless because it has no ____ or ______.
air or liquid
The surface of the Moon has mountains, large flat plains, and thousands of pits in the ground called _______.
The Moon's craters may have been formed by volcanoes, but most were caused by chunks of _____ and _____ form space crashing into the moon.
rock and metal
The first missions to the Moon used _______ and ________ _____ _____.
robots and unmanned space craft
Half of the Moon always faces the _______, and the other half is always _______.
Sun , dark
As the Moon travels around Earth, it appears to change ______ because we see different amounts of its _______ half.
During a New Moon, you can't see the lighted half of the Moon because the Moon is between ______ and _________.
Sun and Earth
During a Full Moon, you can see all of its _______ ____.