MERCURY
Planet closest to Sun
DISTANCE FROM EARTH: 48 million miles
LENGTH OF ONE ROTATION (day): 58.65 Earth days
ORBITAL PERIOD (year): 88 Earth days
COMPOSITION: Gray rock covered with craters
AVERAGE TEMPERATURES: -300F on dark side, 800F on side facing sun
MOONS: None
FUN FACT: Mercury has no water, no air and no moons. It's only
slightly larger than our moon. If you weigh 100 pounds on Earth, you
would only weigh 37 pounds on Mercury.
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Every group needs leaders to keep it running smoothly. A group needs
rules to keep its people safe. And it needs to have someone make sure
the people are following those rules. Our United States Government
has three branches to fill those roles, serving the needs of over 300
million U.S. citizens. Learn all about our government and how it
works to protect its people and its land.
GOVERNMENT SITES:
Learn about our government
Find links to government sites built for kids here.
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