Curious about Mercury

How hot is this tiny planet? Spark early readers' natural curiosity about planets with this inquiry-based nonfiction approach to Mercury.

You know Mercury is the closest planet to the Sun. But did you know it's only a little bigger than Earth's Moon? Or that it has more craters than any other planet? Perfect for self-selection and early reports, this question-and-answer book covers Mercury's appearance and features, plus missions to the planet.

A Quick Facts chart provides fast facts while si...