Moons
Eclipses
Tides
Phases
Stars
Miscellaneous
100
These two gas giants have the most moons.
What are Jupiter and Saturn?
100
This type of eclipse occurs when the Moon blocks the Sun.
What are "solar eclipses"?
100
This is what the Moon's gravity causes in Earth's oceans.
What are tides?
100
This phase of the Moon is the dimmest.
What are "new moons"?
100
This layer of the Sun is at the center - the hottest, densest layer; where fusion occurs.
What is the Sun's core?
100
This is a pattern or shape of stars in the night sky.
What are constellations?
200
These two planets have no moons at all.
What are Mercury and Venus?
200
This eclipse occurs when the Earth casts a shadow on the Moon.
What is a "lunar eclipse"?
200
These special tides occur with deep low tides and shallow high tides.
What are "neap tides"?
200
This phase of the Moon is the brightest.
What are full moons?
200
How the largest stars destroy their outer layers to leave behind their cores as either a neutron star or black hole.
What is a supernova?
200
This element is the primary element in most stars; it is fused into this other, larger element.
What are hydrogen and helium?
300
This is how the Moon most likely formed.
What was the Giant Impact?
300
This is the darkest part of a total eclipse. (starts with "u")
What is the "umbra"?
300
These special tides occur with deep high tides and shallow low tides.
What are "spring tides"?
300
This is the source of light for lunar phases.
What is light from the Sun/sunlight?
300
This is the difference between a star's absolute and apparent magnitude.
What is that apparent magnitude includes the star's current distance?
300
Earth's hemispheres can experience seasons - this is why they can suffer summers.
What is being tilted towards the Sun?
400
Many large moons have this property which makes them interesting to astronomers.
What is liquid water?
400
This is the partially darkened part of an eclipse that occurs in a partial eclipse. (starts with "p")
What is the "penumbra"?
400
Spring tides occur during these phases of the moon.
What are full and new moons?
400
This type of lunar phase is more than half-full.
What is "gibbous"?
400
This is how solstices and equinoxes are different.
What is that equinoxes have equal day/night lengths, and solstices have longest/shortest day?
400
This moon of Jupiter is volcanic. (starts with "I")
What is Io?
500
This is the largest moon in the solar system. (starts with "g")
What is Ganymede?
500
This is why eclipses don't occur monthly.
What is a tilted lunar orbit?
500
Neap tides occur during these phases of the moon.
What are first quarter and third/last quarter moons?
500
This process is shown as Earth sees the Moon becoming less illuminated.
What is "waning"?
500
This describes the process of fusion and its effect on atoms.
What is combining smaller atoms into larger ones to produce energy?
500
The largest stars die into this phase of intense gravity that can absorb light.
What are black holes?
600
This moon has water geysers. (starts with "E")
What is Enceladus?
600
This layer of the Sun can be seen during total solar eclipses.
What is the corona?
600
This is why spring tides occur during solar and lunar eclipses.
Why is that the Sun and Moon are pulling Earth's water in the same direction?
600
This process is shown as Earth sees the Moon becoming more illuminated.
What is "waxing"?
600
This is the process of a star forming from a nebula.
What is condensing and heating due to gravity?
600
This is the difference between meteoroids, meteors, and meteorites.
What is location - in space, atmosphere, or on the ground?