Planets (Magic Wagon (Firm))

Looking Glass Library

Imagine you could go -- Solar system -- Small planet -- Distance from Earth -- Years and days -- Mercury's appearance -- Less gravity, no atmosphere -- Surface -- Temperature -- Core -- An amazing trip -- How do scientists know about Mercury? -- Mercury facts -- Words to know

An imaginary journey to Mercury provides facts about the planet's size, year, appearance, gravity, temperature, and core, and suggests some of the questions scientists would want to answer if it really were possible to travel there