Scale and Properties of the Solar System

Extra Credit** What is the correct order of the planets starting with the sun?

What is found in a galaxy?

• stars, planets, moons, gas and dust

• planets and moons only

• planets, but not stars

• A single star with several planets orbiting it

How are the four outer planets different than the four inner planets

• They are smaller

• They all have moons.

• They take less time to orbit the Sun.

• They have no atmosphere.

Which statement is true about coments and/or asteroids?

• An asteroid has a tail and a comet does not.

• A comet is made of rock and iron and it orbits the Sun.

• A comet can have its own moons.

• A comet is a chunk of frozen gas, rock, ice and dust

How are the inner planets similar?

• They are a small size and have solid cores.

• They have a long revolution.

• They are large in size.

• They are made mostly of gas.

What does AU stand for?

• Amplify Uranus

• American Unique

• Astronomical Units

• Asteroids Undetected

Only the gas planets have molecular hydrogen in their atmosphere.

• True

• False

Stars are formed in

• Planetary nebulae

• Stellar nebulae

• Black holes

• Asteroid belts

Massive stars will eventually

• Quietly turn into a white dwarf

• Slowly turn into a brown dwarf

• Explode in a supernova

• break into a million baby stars

Both small stars and large stars

• change during their lifespan

• Will become blackholes

• Will explode violently in a supernova

• Will become pulsars