Mercury is the smallest planet in the solar system with a diameter of about 3,032 miles. It has almost no atmosphere and its surface is characterized by impact craters, ridges, and volcanic plains. Mercury has no rings but has one moon named Phobos. A day on Mercury lasts about 58 Earth days and a year lasts about 88 Earth days. Gravity on the surface is about 38% of Earth's. Mercury was discovered by astronomers in ancient times and studied more recently by spacecraft like Mariner 10 which orbited and imaged the planet in the 1970s.

1. Mercury

2. – How large is your planet? What is its
diameter?

3. – What is its atmosphere like?

4. – What are some of its geological traits?

5. – How many moons does it have? What are
their names?
– How many rings does it have? What are they
made up of?

6. – How long is a day and year on that planet?

7. – What is the surface gravity like for the planet?

8. – Who discovered the planet and when? How
was it discovered?

9. – What satellites have been sent to the planet?
Probes? Or how do scientists study the
planet?