What is no known life, almost no weathering, no atmosphere, no liquid water
100
The point in the Earth's orbit when the hours of daylight and darkness are equal is called
What is equinox
100
These are also known as "shooting stars"
What is meteors
100
It takes this many hours for the earth to complete one rotation on its axis
What is 24 hours or one day
100
This person is was the first astronaut to walk on the moon.
Who is Neil Armstrong?
200
The moon takes how many days to complete a full rotation on its axis.
What is 27.3 earth days; approximately one month
200
Define Revolution
What is when one object goes around another object
200
The area located between Mars and Jupiter where most asteroids are found is called
What is Asteroid Belt
200
occurs when Earth passes through a new moon's shadow; the moon appears to totally cover the sun
What is solar eclipse
200
The first Americans were sent into space through what program?
What is the Mercury Program
300
This occurs when the full moon passes through Earth's shadow. Earth passes between the Sun and the Moon blocking the sun's light.
What is lunar eclipse
300
The point in Earth's orbit when the daylight hours are at the greatest or fewest is called
What is solstice
300
Have a nucleus, coma, and a tail (dust and gas)
What is a comet?
300
Name the four inner planets
What is Mercury, Venus, Earth, Mars
300
Name the first satellite launched into space
What is Sputnik
400
Why are craters on the moon still visible, when Earth has few craters today?
What is there is no weathering/erosion on the moon
400
an imaginary line that passes through Earth's center and its North and South Poles
What is axis
400
A comet's tail points in which direction compared to the Sun
What is away from the Sun
400
Balls of ice that often have clouds surrounding them are called
What is comets
400
The moon landings were part of this program of space exploration
What is Apollo
500
Name two of the three types of land forms on the moon
What is highlands, craters, and marias
500
Dark flat areas of hardened lava found on the moon
What is maria
500
Name the difference between a meteor, meteorite, and meteroid
What is Meteors can only be found in a planet's atmosphere
A meteorite is when a meteor hits the surface of a planet and is no longer moving.
A meteoroid is a floating solid object in space that has not yet hit a planet.
500
Name the nine planets
What is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
500
Name three different tools astronomers and astronauts ahve used to explore space
What is a telescope, space probe, radio telescope, satellite, space shuttle, astronauts, rovers