Day, Night, & the Seasons
The Moon and Earth
Phases of the Moon
Vocabulary
What Makes Up Our Solar System?
100
We have day and night because of this
What is Earth's rotation
100
Any natural body that revolves around a planet
What is a moon
100
During this phase you can't see any of the moon at all
What is new moon
100
The imaginary line that passes through Earth's poles
What is axis
100
The ____________ is everything that exists: all the stars, the planets, dust, gases, and energy
What is the universe
200
Two reasons why we have different seasons
What are 1) the tilt of Earth on its axis and 2) Earth's revolution around the sun
200
Both the moon and Earth have _____________ (low, bowl shaped areas on the surface of a planet or a moon)
What are craters
200
When the moon is ___________, more and more of it is visable from Earth each night
What is waxing
200
A __________ is a huge ball of very hot gases
What is a star
200
_____________ can be classified according to size, brightness, temperature, color
What are stars
300
The day with the most hours of daylight (the longest day of the year)
What is the Summer Solstice
300
A footprint on earth doesn't last long, but a footprint on the moon could last millions of years due to lack of __________
What is erosion
300
When the moon is ___________, less and less of it is visable from Earth each night.
What is waning
300
Each shape the moon seems to have throughout a month is called a ________________
What is moon phase
300
This separates the 4 inner planets from the 4 outer planets
What is an asteroid belt
400
The days when the hours of daylight and darkness are about the same are called...
What are equinoxes
400
This occurs when the moon is between Earth and the sun and casts a shadow on Earth
What is solar eclipse
400
This phase of the moon occurs after a new moon
What is waxing crescent
400
The gravitational force of a star holds a __________ in orbit around it.
What is a planet
400
The 4 outer planets are called ___________ because they are composed mostly of hydrogen and helium.
What are gas giants
500
Officials set up _____________ in the late 1800's to avoid confusion after they began to travel long distances on trains.
What are time zones
500
Our weight on the moon is much less than our weight on Earth because of this
What is the pull of gravity
500
How much of the moon do you see during the third quarter phase?
What is half (of the lighted side)
500
A __________ is made up of a star and all the planets and other objects that revolve around it.
What is solar system
500
Spiral, Barred Spiral, Elliptical, and Irregular are all types of......
What are galaxies
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