Vocabulary
Moon Phases
Eclipses
Earth-Moon-Sun
Challenge
100
Complete or partial hiding of the sun caused by the moon's passing between the sun and the earth; a darkening of the moon caused by its entering the shadow of the earth
What is an eclipse?
100
The moon phases in position 8
What is a waning crescent?
100
What is a solar eclipse?
100
The arrangement needed for a solar eclipse.
What is the sun-moon-earth?
100
The name given to the second full moon during the same calendar month.
What is a blue moon?
200
The changing appearance of the moon as seen from earth
What are the moon phases?
200
The numbers for the two gibbous moons
What are numbers 4 and 6?
200
What is a lunar eclipse?
200
The arrangement needed for a solar eclipse.
What is sun-earth-moon?
200
The name given to the moon during a lunar eclipse.
What is a blood moon?
300
The darkest part of the shadow during an eclipse.
What is the umbra?
300
The moon phase in this diagram
What is a waxing crescent?
300
You are more likely to see this type of eclipse.
What is a lunar eclipse?
300
The arrangement of a first-quarter moon (drawing with the sun on the right)
What is
300
When the moon is in both Earth's penumbra and the umbra.
What is a partial lunar eclipse?
400
The decreasing illumination of the moon from full to new.
What is waning?
400
This moon phase as seen from Earth
What is a third quarter?
400
The area on Earth in a partial solar eclipse
What is the penumbra?
400
The arrangement of a full moon (drawing with the sun on the left)
What is 
400
When standing in the moon's penumbra, this is what you would see.
What is a partial solar eclipse?
500
This takes approximately 1 month
What is the lunar cycle?
500
The reason we see the moon in phases
What is the sunlight reflected off the moon and the moon's orbit around Earth?
500
The reason we don't have lunar and solar eclipses every month.
What is the moon's orbit is tilted 5 degrees?
500
The arrangement of a waning gibbous (drawing with the sun on the left)
What is 
500
The reason the moon looks red during a lunar eclipse.
What is because Earth's atmosphere blocks the blue and green light and only the red light waves make it through?