Many scientists think Mars was once covered with water, just like Earth. Was Mars once home to living creatures as well? Will people one day live on Mars? Scientists are keeping a close eye on Mars in the hope of answering these questions. Readers will be excited to open this book and find out more about one of the solar system's most interesting locations. Series Review: Our Solar System"This series for younger readers is a solid introduction to the solar system...Bolded titles and vocabulary words, easy to read typeface with lower level text, and book size make this series perfect for early elementary students."-Library Media Connection
