Astronomy Quiz: Earth as a Planet Pages 146-149. Period 3 Questions 1.How are planet density and planet size related? How are density and location from.

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Astronomy Quiz: Earth as a Planet Pages

Period 3 Questions 1.How are planet density and planet size related? How are density and location from the sun related? 2.Is inertia stronger at a certain place on Earth? If so, what part and why? How does this affect Earth’s shape? 3.Where does Earth rotate the fastest? Why? Explain… 4.How do we know what the interior of Earth is made of? 5.Why is the interior of the Earth hot? 6.Why is Earth’s inner core a solid when it is hotter than the outer core? 7. What does density help astronomers learn about other planets? 8.How are gravity and density related?

Period 4 Questions 1. How are planet density and planet size related? How are density and location from the sun related? 2.Is the Earth a perfect sphere? Why or why not? Explain. 3.What can be determined from a seismic wave traveling through Earth? 4.Give two explanations as to why the Earth’s interior is hot. 5. Why does the core contain more metal than the crust or mantle? 6.If the density of the earth was different, would that affect it – and us - in any way? How? Give details.

Period 5 Questions 1.What are the two explanations of the Earth’s inner heat source? Which do you think is more important and why? 2.How are planet density and its size related? How are planet density and its location from the Sun related? Explain. 3.Is the Earth a perfect sphere? Why or why not? Explain. 4.If the density of the earth was different, would that affect it – and us - in any way? How? Give details. 5. Considering that Earth can sustain life (with supplies of water and oxygen) would we be able to live if the Earth was further away from the Sun – say, in Jupiter’s orbit. Why or why not? 6.How are gravity and density related?