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Brooks Jarrett-Astronomy
Chapter 3
23
Astronomy
7th Grade
02/04/2013

Additional Astronomy Flashcards

 


 

Cards

Term
Venus
Definition
The second planet from the sun
Term
Mars
Definition
Fourth planet from the sun
Term
Jupiter
Definition
Fifth planet from the sun
Term
Saturn
Definition
Sixth planet from the sun
Term
What is Venus's surface temperature?
Definition
450-475 degrees farenheight
Term
Earth
Definition
The third planet from the sun
Term
Uranus
Definition
The seventh planet from the sun
Term
Neptune
Definition
The eighth planet from the sun
Term
What is the gas that gives both Neptune and Uranus their
Definition
Methane gas
Term
How many moons does Jupiter have
Definition
63 moons
Term
Mercury
Definition
the first planet from the sun
Term
the chunk of rock in the comet
Definition
the nucleas
Term
Which planet is covered with 70% water
Definition
Earth
Term
what mineral gives Mars's soil it's red soil
Definition
iron oxide
Term
which comet comes every 76 yrs?
Definition
Haleys comet
Term
Ideas about the night sky might have___ over time
Definition
changed
Term
How did the solar system form?
Definition
1) a nebula of gas and ice slowly formed
2) a cloud of material in the nubula slowy rotated in space
3) shock waves may have caused the cloud to contract, and the matter was squeezed into less space
4)the cloud became more dense, rotated faster, heated up, triggering a nuclear fusion reaction that created the sun
6) the remaining matter became the planets and asteroids
Term
Sun centered model
Definition
the idea that our solar system revolved around the sun
Term
Early greeks believed in the _____-centered model
Definition
Earth
Term
Earth centered model
Definition
The theory that our solar sytem revolves around the Earth
Term
coma
Definition
the cloud that forms around a comet
Term
Smaller planets
Definition
Rockier
Iron cores
more dense
Term
Outer planets
Definition
Very gaseous
larger
less dense
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