Space Rocks-Chapter 8

Psalm 148:3
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Terms in this set (21)
Psalm 148:3
"Praise Him, sun and moon; praise Him all you stars of light."
comet
A ball of frozen dust and rock that orbits the sun and has a tail that glows
coma
ball of steam and dust surrounding the ice in a comet. Looks like a tail
dirty snowball
Another name for a comet
light pollution
brightening of the night sky caused by street lights and other man-made sources, which has a disruptive effect on natural cycles and inhibits the observation of stars and planets.
sublimate (verb)
when ice doesn't melt into liquid but goes straight from solid to a gas instead. This is what forms the coma of the comet
meteor
A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
Meteroid
a small body moving in the solar system that would become a meteor if it enters the earth's atmosphere.
meterorite
a meteoroid that does not completely burn up in the atmosphere and strikes the surface of a moon or planet
short period comets
Comets that take less than 200 years to orbit the sun
long period cometcomets that can take thousands of years to make one orbit around the sunasteroida rock orbiting the sun in our solar systemWhat is the difference between an asteroid and a meteoroid?Size. Asteroids are large rocks (typically bigger than a football field), while meteoroids are small rocks.planetoidanother name for an asteroid. means "little planet"asteroid beltthe region of the solar system between the orbits of Mars and Jupiter, where many asteroids are foundinner planetsMercury, Venus, Earth, Marsouter planetsJupiter, Saturn, Uranus, NeptuneExploded Planet HypothesisThe idea that there was once a planet between Mars and Jupiter, the asteroid belt may be the remains of that planet.Where have many meteorites been found?AntarcticaFrom which planet did some of the meteorites come?Mars.Give some reasons why the Exploded Planet Hypothesis may be a correct hypothesis?Craters are found mostly on one side of many planets and moons; comets look like asteroids and could be pieces of this planet; Mars has the deepest craters and is the closest planet to the asteroid belt; many moons look like comets and asteroids.