The Planet Mercury 🔒

Get to know the smallest planet in our Solar System with this 10-question quiz on Mercury.

It mixes fill-in-the-blank and true or false items, with prompts like How long is Mercury year? and What was the first spacecraft to visit Mercury?, so it is friendly for newer students.

One of the strangest facts here is how a single day on Mercury compares to its year. A day on the planet actually stretches across a big chunk of its trip around the Sun, which feels backwards at first.

You will also see why Mercury is so tricky to spot in the sky.

Recommended level: beginner.

0 of 10 answered Score: 0%

Question 1

Mercury solar day is ___ .

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Mercury is the closest planet to the Sun.

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Mercury is the smallest planet in the Solar System.

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What was the first spacecraft to visit Mercury?

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How long is Mercury year?

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How many satellites does Mercury have?

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Seventy percent of Mercury is ___ .

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Mercury has a strong ___.

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Mercury day is ___ Mercury years.

🔒 Answer question 9 to unlock

Mercury is hard to see because of ___ .

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