Planets (test)

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A.  Solar Stuff -- Put them in order starting with the closest to the Sun.  (In other words, “1” has the orbit closest to the Sun and “12” has the orbit farthest from the Sun.

	___  Venus			___  Asteroid Belt		___  Kuiper Belt
	___  Jupiter			___  Saturn			___  Neptune
	___  Mercury			___  Earth			___  Pluto (usually)
	___  Uranus			___  Oort Cloud			___  Mars

B.  Multiple Choice, true-false, fill in the blank...

T    F    1.  Earth's core is hotter than the surface of the Sun.

___2. What percentage of Earth's surface is covered by water?
	A. 98		B. 32		C. 71		D. 57

___3. Mar's moons are most likely:
	A. Small planets      B. Potatoes		C. Big planets        D. Captured asteroids

T    F    4.  The surface of Venus is hot enough to melt lead.
5.  Uranus has extreme seasons because of its large ________________.
T    F    6.  Titan and Triton are Mars' 2 moons that are actually captured comets.
T    F    7.  Mars has polar ice, as does Earth.
T    F    8.  Some of the gas giants generate more heat, than they receive from the sun.
T    F    9.  The Oort Cloud is a sphere that surrounds the entire Solar System.
___10. Mercury has ______ moons.
	A. 1		B. 0		C. 2		D. 10

11.  Neptune's moon, Larissa, was discovered when it blocked out the light from a ____________.

12.  The Tilt of the Earth is _________ degrees.

13.  Name all planets that definitely have rings:

___14.  Which planet is most like the Earth in mass and diameter?
	A.  Mercury	B.  Venus	C.  Mars	D.  Jupiter	E.  Pluto

___15.  Which planet appears most like the Earth's Moon?
	A.  Mercury	B.  Venus	C.  Mars	D.  Jupiter	E.  Pluto

16.  The highest mountain and the longest canyon in the solar system are both on ____________.
___17.  Neptune's biggest moon is:
	A.  Triton	B.  Luna	C.  Halley	D.  Pluto	E.  Titanium

___18.  It takes __ Earth days for Mars to orbit the Sun.
	A.  88		B.  365.25	C.  687	D.  1999

19.  The ratio of _______________'s days to years 3 to 2.

___20.  Which element or compound is most responsible for the heat in Venus' atmosphere?
	A.  carbon dioxide		B.  water	C.  nitrogen		D.  methane

___21.  Neptune's atmosphere is made up of:
	A.  Hydrogen	B.  Helium		C.  Methane		D.  all of those

___22. The majority of Mercury's surface is covered by:
	A.  craters		B.  life	C.  water		D.  ice

___23.  Saturn's day lasts:
	A.  30 minutes	B.  8.5 hours		C.  10.5 hours	D.  24 hours

___24.  Saturn's biggest moon:
	A.  Io		B.  Luna	C.  Ganymede	D.  Titan

C.  Short answer – on a separate page answer each of the following. (3)

	1.  Discuss the theory regarding Venus' water?

	2.  Describe Jupiter's atmosphere.

	3.  List the terrestrial planets.

	4.  What is a retrograde orbit?  Why would a moon (or planet) do this?

	5.  Why is Mars red?  What does this imply?

D.  Paragraph – on that same separate page.  Pick 1 of the following. (8)

	Why would it be difficult for Mercury to have moons?
	Why isn't the Earth covered with craters like some other terrestrial planets?
	Why aren't Saturn and Jupiter as spherical as the other planets?
	Define: Planet

Bonus:  (5)  List the planets in ascending mass order.

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