17 terms

Science Fusion Unit 2 Lesson 3

4th Grade Florida Fusion textbook based

Terms in this set (...)

an object, such as a moon, that orbits a planet
the path an object follows as it revolves
the force that pulls objects toward each other
crescent moon
the shape the moon makes when it is less than half full (lit up)
new moon
when the moon is in full shade and not visible or appearing only as a very thin crescent
A round pit on the moon's surface
the different shapes of the moon you see from Earth
What is the shape of Earth's orbit?
The earth's orbit is an ellipse.
full moon
when the moon is completely lit up by the sun
first quarter moon
when the first half of the moon is lit after a new moon
Third quarter moon
when the second half of the moon is lit after a full moon
What does the surface of the moon look like?
the surface is dusty and has craters and mountains.
Why does the moon appear to be shining in the night sky?
It reflects light from the sun.
Why does the same side of the moon always face Earth?
The moon's rotation and revolution are about the same length.
What is the solar calendar based on?
The movement of the sun over the course of a year.
What is the lunar calendar based on?
The phases of the moon determine the beginning and end of each month.
What features on the moon's surface do meteorites make?

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