Astronomy Planetary Science

What is an comet?

• Large planetary debris, made of ice, and inactive
• Small planetary debris, made of rock, and less than 100m in diameter.
• Large planetary debris, more than 100m in diamter, made of rock, and inactive
• Planetary debris, made of rock, that enters Earth's atmosphere and is vaporized

What is an asteroid?

• Large planetary debris, more than 100m in diamter, made of rock, and inactive
• Inner planets, made of rock, see notes for other characteristics
• Outer planets, made of gas, see notes for other characteristics
• Planetary debris, made of rock, that enters Earth's atmosphere and hits the Earth's surface

What is an meteoroid?

• Outer planets, made of gas, see notes for other characteristics
• Gradual growth of small objects by collision and sticking
• Small planetary debris, made of rock, and less than 100m in diameter.
• Inner planets, made of rock, see notes for other characteristics

What is a meteorite ?

• Planetary debris, made of rock, that enters Earth's atmosphere and is vaporized become a meteor if it enters the earths atmosphere
• Small planetary debris, made of rock, and less than 100m in diameter. 
• Small planetary debris, made of rock, and less than 100m in diameter.
• Planetary debris, made of rock, that enters Earth's atmosphere and hits the Earth's surface

What is a definition Terrestrial planets ?

• Rocky portion in between Earth and Jupiter.
• Outer planets made of gas. 
• Inner planets made of rock. 
• The critical distance of which a moon is destroyed.
  

What is a definition Jovian planets ?

• Gradual growth of small objects by collision and sticking
• Small planetary debris, made of rock, and less than 100m in diameter
• Inner planets made of rock.
• Outer planets made of gas.

What planet is a terrestrial planet?

• Mars 
• Jupiter 
• Saturn 
• Pluto

What planet is a Jovian planet ?

• Neptune 
• Earth
• Mercury
• Pluto

What is accretion?

• The creation of the solar system
  
• The formation of the Sun
• The critical distance of which a moon is destroyed
• Gradual growth of small objects by collision and sticking

What is the Great Red Spot?

• Hurricane storm system on Jupiter, twice the size of Earth
• Hurricane storm system on Jupiter, twice the size of Neptune
• Hurricane storm system on Neptune, twice the size of Earth
• Gradual growth of small objects by collision and sticking