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INVADERS

INVADERS

ASTRONOMY

over 18,000 degrees

over 1,800 degress

over 800 degrees

How hot is Mercury during the day?

LEVEL 1/5

razzmatazz

Black

blue

What does the daytime sky look like on the surface of Mercury?

LEVEL 2/5

circular

oval

elliptical

What is the shape of Mercury's orbit called?

LEVEL 3/5

Terrestrial

aqueous

gaseous

What kind of planet is Mercury?

LEVEL 4/5

alien attacks

asteroid impacts

subterranean volcanoes

What may have caused the many craters on the surface of Mercury?

LEVEL 5/5

NO

yes

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