A day on Mars is almost as long as a day on Earth, but how long is a year on Mars?Does Mars have seasons?What color are the rocks on Mars?Mars is full of volcanoes, but when did the last one erupt?Learn the answer to these questions and many more fun facts in this 15-Minute Book. In the Milky Way Galaxy, there is a yellow sun that has eight planets. Four of the planets are rock worlds. The other four are gas and ice. The closest planet to the sun is Mercury. It’s too hot for anything to live there. The second is Venus. Its atmosphere is deadly. The third is Earth. It has oceans and land. It has trees and animals, and humans.The fourth planet, and last of the rock worlds, is Mars – the red planet. How much do you know about this fascinating place?LearningIsland.com believes in the value of children practicing reading for 15 minutes every day. Our 15-Minute Books give children lots of fun, exciting choices to read, from classic stories, to mysteries, to books of knowledge. Open the world of reading to a child by having them read for 15 minutes a day.