65 terms

The Moon and Vocabulary

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Terms in this set (...)

What is the solar system?
System of the Sun, planets, and other objects that orbit the Sun.
What does the Moon orbit?
Earth
The Moon is the Earth's only _______ _________.
natural satellite
The moon is visible at ____ sometimes and during the ____ sometimes.
night, day
The changes in how the moon appears/looks from Earth is called ______.
moon phases
The lunar cycle takes _____ days.
29.5
The Moon is said to be _____ as the illuminated part grows from new to full. Key word: growing
waxing
The Moon is said to be ______ as the illuminated part decreases from the full to the new phase. Key word: Decreasing
waning
The Earth rotates on its axis______ faster than the Moon revolves around the Earth.
29.5 times
A new Moon occurs when the Moon is positioned between the ________ and the _______. (face not lit)
Earth, Sun
A full moon occurs when the Earth is positioned between the ______ and the _______. (entire face lit)
Sun, Moon
The right half of the moon is lit during the _____ phase.
First-Quarter
The left half of the moon is lit during the _____phase.
Third-Quarter
The entire face it lit during the _____ phase.
Full Moon
The face is not lit during the ______ phase.
New Moon
A waxing Moon appears to get _____ each day.
bigger
A waning Moon appears to get _____ each day.
smaller
A crescent Moon is a _________.
thin slice of the Moon, less than a quarter illuminated
A gibbous Moon is a ______
rounded Moon, more than a quarter illuminated (more than a semicircle and less than a circle)
After a new Moon, Week 1 is described as _____
first quarter, the right half of the Moon is bright
After a new Moon, Week 2 is described as ____
full Moon, the whole Moon is bright
After a new Moon, Week 3 is described as ___
third quarter, the left side of the Moon is bright
Week 4 is the ______
new Moon
During what phase of the Moon can you observe a lunar eclipse?
Full Moon
During what phase of the Moon can you observe a solar eclipse?
New Moon
Rotation
a complete spin on an axis
How long does it take the Earth to rotate on its axis?
24 hours, one day
What movement of the Earth causes day and night?
Rotation
In which direction does the Earth rotate?
West to East (Hint: Spells "We")
What type of force is gravity?
It is a pull or attraction between two objects
Which characteristics affect the strength of gravity between two objects?
mass of the objects and the distance between them
Inertia
the tendency of a moving object to keep moving in a straight line
Orbit
the path one object takes around another object
Revolution
one complete trip around the Sun
How long does it take the Earth to revolve around the Sun?
1 year, 365 1/4 days
What characteristic of Earth causes areas of Earth to experience different seasons?
Earth rotates on a tilted axis.
Axis
an imaginary line upon which the Earth rotates
New Moon
Nothing illuminated
First Quarter Moon
Right half illuminated
Full Moon
Whole circle/face illuminated
Third Quarter Moon
Left half illuminated
Waxing Gibbous Moon
(Right side illuminated more than half but not quite the whole moon face/circle)
Waning Gibbous Moon
(Left side illuminated more than half but not quite the whole moon face/circle)
Waxing Crescent
Right side tiny slice illuminated
Waning Crescent
Left side tiny slice illuminated
Phases of the Moon
Solar Eclipse
Moon passes between the Earth and Sun and casts a shadow on Earth. People on Earth see darkness move across the Sun.
Lunar Eclipse
The Moon moves into Earth's shadow and direct sunlight can't hit it. The Earth is between the Sun and Moon. This can only happen during Full Moon phases.
Tide
Rise and fall of the ocean's surface.
What part of the Earth experiences high tides?
Side of the Earth facing the Moon and the side opposite the Moon. This is due to the pull of gravity.
Where do low tides occur?
halfway between high tides
What causes the highest tides?
Gravity from the Sun and from the Moon pull together on Earth.
Solar Eclipse (describe)
Lunar Eclipse (describe)
Moon Phase
The appearance and shape of the Moon as you see it from Earth
When the Moon passes directly between the Sun and the Earth, a ______eclipse happens
solar
When the Moon moves into Earth's shadow, a ____ eclipse occurs.
lunar
Which is larger, Earth or the Sun?
Sun
Galaxy
A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
Comet
A mixture of ice, frozen gases, rock, and dust
(Coma, Nucleus, and Tails)
Asteroid
Small, rocky objects between Mars and Jupiter
Meteor
Chunk of rock from space that travels through Earth's atmosphere
Meteoroid
A small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
Satellite
A natural or artificial object in space that circles around another object
Moon
A natural object that orbits a planet

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