What 3 planetary bodies need to be lined up in a straight line for an eclipse to occur?
sun, moon, and earth
100
2 times each
How many times a day do low and high tides occur?
2 times each
100
What is the difference between waxing and waning
waning is getting smaller
waxing is getting larger
100
How many centimeters does the Moon move away from the Earth each year?
4cm
200
Which way does the Moon revolve around the Earth?
counterclockwise
200
About how many days apart are a Lunar and Solar Eclipse?
15 days
200
What is the lowest of the low tides called?
neap tide
200
What is the difference between a penumbra and an umbra
penumbra is a partial shadow where an umbra is the full shadow from an Eclipse
200
Do you always see the same side of the Moon?
yes
300
What two moon phases occurs after a New Moon?
waxing crescent, first quarter
300
What is the difference between a solar eclipse and a lunar eclipse?
Solar Eclipse is when the Moon is between the Earth and the Sun
Lunar Eclipse is when the Earth is between the Sun and the Moon
300
What is the highest of the high tides called?
spring tides
300
What means: having the observable illuminated part greater than a semicircle and less than a circle.
gibbous
300
How long does it take the Earth to complete a full spin on its axis?
How about Moon's full revolution around the Earth?
1 day
1 month
400
Name the next three Moon phases after a Full Moon
waning gibbous, last quarter, waning crescent
400
How does a red-blood moon occur?
The red moon is possible because while the moon is in total shadow, some light from the sun passes through Earth's atmosphere and is bent toward the moon
400
How many times do neap and spring tides occur?
twice a month
400
Explain what the rotation of the Moon means
Moons spinning on its axis
400
How long does it take the Earth to do a full rotation?
How about the Moon?
1 day
1 month
500
Name the phases of the Moon in order, starting with New Moon
New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, Waning Crescent
500
During what eclipse do we see the "ring of fire"
annular solar eclipse
500
During what phases does a neap occur?
How about a spring tide?
Neap tides occur during first and last quarter moons
Spring tides occur during full and new moons
500
Explain what the revolution of the Moon means
Moon's path around Earth
500
Why do seasons occur
The Earth's axis and the revolution around the Sun