Universe & Galaxy
Solar System
Earth
Earth's Moon
Sun and Stars
100
About 9.5 trillion kilometers
How far is one light-year?
100
This space object is kind of like a giant, dirty snowball.
What is a comet?
100
Another word for the spin of a planet, moon, or star on its axis
What is rotation?
100
A dent, or hole, on a moon or planet caused by an object crashing into its surface.
What is an impact crater?
100
When once every 11 years the Sun's surface becomes very active (more flares, prominences, sunspots, and CMEs)
What is a solar maximum?
200
This is either spiral, elliptical, or irregular in shape (ours is a spiral).
What is a galaxy?
200
Methane and signs of water on this planet make scientists wonder if they may be life there.
What is Mars?
200
The longest day of the year (in South Carolina)
What is the summer solstice?
200
When the Earth, moon, and Sun make an L-shape, causing not-so-low low tides and not-so-high high tides.
What are neap tides?
200
The reason that the Sun gives off light
What is nuclear fusion?
300
Between 12 and 15 billion years old.
How old is the universe?
300
The sixth planet from the Sun.
What is Saturn?
300
The Earth's tilt and its revolution around the Sun.
What are the two main causes of seasons?
300
July 20, 1969
On what date did Apollo 11 land on the moon?
300
The part of the sun that you can see during a total solar eclipse.
What is the corona?
400
The attraction between two objects with mass (depends upon mass and distance.)
What is gravity?
400
This is what we call a meteoroid that burns up in Earth's atmosphere
What is a meteor?
400
The geographic zone in which we live.
What is the temperate zone?
400
This happens when the Earth passes directly between the Sun and the moon.
What is a lunar eclipse?
400
What the Sun will become in 5 billion years.
What is a white dwarf?
500
About 100 billion.
How many stars are in the Milky Way Galaxy?
500
Mercury and Venus (these are also the two closest planets to the Sun)
Which planets in our solar system have no moon(s)?
500
When the number of daylight hours is equal to the number of night hours.
What are the equinoxes?
500
Dark spots on the Moon caused by ancient volcanoes.
What are maria?
500
2017
When is the next total solar eclipse for residents of South Carolina?
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