Astronomy Review

What is the estimated age of the universe? 

• 14 billion years old 
• 4.5 billion years old 
• 14 million years old 
• 20 million years old 

Which scientist developed the Heliocentric view of the universe despite many people disagreeing with him? 

• Einstein 
• Copernicus 
• Ptolemy 
• Aristotle  

Which galaxy type would Earth be found in? 

• Irregular Galaxy 
• Spiral Galaxy 
• Elliptical Galaxy 

What is the name of the galaxy we live in? 

• Orion Galaxy 
• Milky Way Galaxy 
• Solar System Galaxy 
• Andromeda Galaxy 

The moon's orbit is titled. 

• True 
• False 

Gas giants have THIN atmospheres. 

• True 
• False 

How many days does it take for the moon to orbit Earth?

• 365.25 days
• 24 hours
• 20 days 
• 29.5 days 

Which two planets do NOT have moons? 

• Mercury and Mars
• Venus and Neptune 
• Mercury and Venus 
• Venus and Uranus 

When the sun is hidden by the moon, a __________________ is occurring. 

• lunar eclipse 
• solar eclipse 

When rock hits Earth’s surface, it is called what?

• Meteor
• Meteoroid
• Meteorite