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mer·cu·ry
 mercury
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- pronunciation:
- muhr
ky
ri
- features:
- Word Explorer
| part of speech: |
noun |
| inflections: |
mercuries |
| definition 1: |
Mercury is a heavy, silver-white metal. Even though mercury is a metal, it is often seen in liquid form. Mercury is the silver liquid used in thermometers.
Mercury can be useful to humans but it is also dangerous if it gets into food and humans eat too much of it. Mercury can cause some serious health problems. |
| definition 2: |
Mercury is a large, round object in space. It is a planet, like our planet Earth. Like Earth, Mercury travels around the sun. Mercury is very hot, though, because it is close to the sun. Of all the planets that go around our sun, Mercury is the closest to it. It is also the smallest planet.
It takes 365 days for Earth to travel around the sun. It takes Mercury only 88 days. People can't live on Mercury, but if they could, their birthdays would come much faster!
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