Cosmos: The Clean Room

Name

Period

• 1
• 2
• 4
• 5
• 6

Who does the video focus on?

• Archbishop James Ussher
• Neil DeGrass Tyson
• Clair Patterson
• Harrison Brown
• George Tilton

What question was he trying to answer?

Who tasked him with answering the question?

• Archbishop James Ussher
• Neil DeGrass Tyson
• Clair Patterson
• Harrison Brown
• George Tilton

How did he answer his question?

• analyzing sediment layers
• finding important moments in history
• examining radioactive decay of uranium to lead

What did he create to accomplish this?

• eliminating contaminants from his lab
• built the fist ultra clean room
• Digging for older ice in Antartica
• using a mass spectrometer

What was the answer to his question?

Who is the God of Lead?

• Jupiter
• Saturn
• Neptune
• Pluto

Why is Kehoe portrayed as a bad guy?