What is a hole created on the surface of a body made by falling meteorites or erupting volcanoes?
Crater
100
What are the four hard, rocky planets called? (Mercury, Venus, Earth, and Mars - closest to the sun)
Inner Planets
100
What are the four gas giants called? (Jupiter, Saturn, Neptune, and Uranus - that orbit the Sun)
Outer Planets
100
What is a gaseous body that produces its own energy, releasing it as heat and light?
Star
200
What is the area between the inner and outer planets that is filled with asteroids?
Asteroid Belt
200
What occurs on or about March 21 and September 23 when the day is divided into equal amounts of day and night?
Equinox
200
What is a spiral island of stars in space?
Galaxy
200
What is a large meteor that falls to the surface of the earth?
Meteorite
200
What is the closest star to Earth?
Sun
300
What is the study of the universe and all of the bodies that appear in the sky?
Astronomy
300
What is a large ball of ice, dust, rock and gas that orbits the sun?
Comet
300
What term refers to the time it takes (27.3 days) for the moon to go around the Earth?
Lunar Month
300
What are large bodies that can only be seen by reflected light, as they revolve around the sun? This word comes from the Greek word "wanderer".
Planets
300
What is a device used to measure time?
Sundial
400
What is an intense gravitational field created when a star runs out of fuel and collapses? Not even light can escape from it.
Black Hole
400
What are bright stars grouped according to the patterns they form in the sky? Many of their names come from characters in ancient mythology.
Constellations
400
What is a natural force which causes objects in motion to move toward one another? It gives objects weight.
Gravity
400
What is the path of planet or other heavenly body as it revolves around another body in space?
Orbit
400
What term refers to when the Sun reaches its highest and lowest points in the sky at noon? In the northern hemisphere the lowest point is Dec. 21 and the highest point is June 21.
Solstices
500
What is a second full moon in a calendar month?
Blue Moon
500
What is to send or give out light?
Emit
500
What is the phase in the moon's cycle when more than half, but less than full, of the moon's surface is illuminated?
Gibbous
500
What is a six class scale to measure the brightness of stars? A first class star is the brightest and a six class is the dimmest.
Magnitude
500
What is everything that exists? (all of the galaxies and the space between them)