Four inner planets tht are small, dense, and have hard, rocky surfaces
What is terrestrial planets?
100
The fuzzy outer layer of a comet.
What is the coma?
100
These formed the craters on the moon.
What is meteoroids?
100
The area between the orbits of Mars and Jupiter where Ceres, Pallas, Juno, and Vesta revolve.
What is an asteroid belt?
100
Meteoroids that pass through the atmosphere and hit the Earth's surface are called?????
What is meteorite?
200
a chunk of rock and dust in space that came from a comet or an asteroid.
What is a meteoroid?
200
Doughnut-shaped region that extends from beyond Neptune's orbit to about 100 times Earth's distance from the sun.
What is Kuiper belt? Double points
200
The first four outer planets that are much larger and more massive than Earth.
What are the gas giants?
200
Rocky objects that are too small and too numerous (more than 1,000 of them) to be considered full-fledged planets.
What are asteroids?
200
These have two tails..one composed of gas and one composed of dust.
What is comet?
300
A spherical region of comets that surround the solar system out to more than 1,000 times the distance between Pluto and the sun
What is Oort cloud?
300
The trapping of heat due to the planet's atmosphere.
What is greenhouse effect?
300
Small space objects that scientists once thought were the remains of a shattered planet, but now scientists hypothsize the ??? are leftover pieces of an early solar system thta never came together to form a planet.
What are asteroids?
300
Loose collections of ice, dust, and small rocky particles whose orbits are usually very long and narrow ellipses.
What are comets? double points
300
a thin disk of small particles of ice and rock that surrounds a planet.
What is a ring?
400
A "dirty snowball" about the size of a mountain.
What is a comet?
400
This is created when a meteoroid enters Earth's atmosphere, heats up, and produces a streak of light in the sky.
What is a meteor?
400
The inner core of a comet.
What is a nucleus?
400
The brightest part of a comet, made up of the nucleus and coma.
What is the head?
400
A chunk of rock or dust in space that comes from a comet or an asteroid.
What is meteoroid?
500
Another name for the group of planets including Mercury, Earth, Mars, and Venus.
What is terrestrial planets? half points
500
Double the points...no question
double the points
500
A group of planets that do not have solid surfaces and are composed of hydrogen and helium?
What are Gas Giants?
500
Another name for Jupiter, Saturn, Uranus, and Neptune.