000			01500 a2200217 4500
008			220320||||||||||||||||| |||||00| ||||||u
020			_a9781410506016
100			_aSillett, Helen
245			_aThe Search for Life on Mars
260			_bStart to Finish Library
500			_aStart-to-Finish: Core Content (Blue) The Start-to-Finish Core Content collection offers age-appropriate, multi-format informational text to build comprehension skills for content mastery. The Start-to-Finish Blue Core Content books offer 4th-5th grade readability and each set contains a paperback book, a computer CD ROM book, an audio book and a reference guide. NOTE: A portable USB DVD writer is available for loan if your computer system does not have a CD/DVD drive. People have wondered about Mars for thousands of years. Mars is one of our closest neighbors in space, but it is a very mysterious place. In the past, many people imagined that there were living things on Mars. Others said that Mars was a dead planet. Has there ever been life on Mars? Is there life on Mars today? Spacecraft and telescopes are giving us new ways to answer these questions. In this book, you will find out how our ideas about Mars have changed as scientists have learned more and more about this mysterious planet.
650			_a Science
650			_a Travel
650			_a Space
650			_a Alternate Formats
650			_a Audio Book
650			_a CD-ROM
650			_aPaperback
909			_a3488
999			_c3524 _d3524