The Planets: Mercury
Mercury is the closest planet to the Sun and is not easily seen except during twilight hours.
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Topics of this game:
- A year on Mercury takes how many Earth days?
- Sunlight on Mercury is as much as ___ times brighter than it is here on Earth
- Because it is so close to the Sun, no spacecraft has ever visited Mercury.
- Dress in layers! Mercury has the most extreme daily temperature fluctuations in the Solar System. Day and night temperatures can fluctuate by about how many degrees?
- Mercury is the hottest planet in our solar system.
- Mercury has just 38% of the __________ of Earth
- the Earth’s core makes up 17% of Earth's volume. It is estimated that Mercury’s core makes up ___ of its volume.
- The surface of Mercury is wrinkled. These wrinkles, called Lobate Scarps, are unique because?
- Mercury is the smallest planet in our solar system
- Mercury's discovery pre-dates its first historical mention by the Sumerians around 3,000 BC. Who is the planet Mercury named after?
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