"Featuring incredible photos and new information about the latest research into Mars, this updated edition of DISCOVERING MARS covers everything about the great red planet, from past to present"--Publisher.

Discusses immigration, past and present, focusing on how four children from different countries came to live in the United States

Describes the characteristics of spiders and the methods they use to trap their prey in webs

Asks readers a true-or-false question about the physical characteristics, diet, or behavior of reptiles that the reader can find the answer to by turning the page

Explains what maps are and how to use them, discusses map symbols and their meanings, and includes maps of a house, community, city, state, country, and the world

A simple explanation of what sharks look like, how they hunt, what they eat, and how they are born

Basic information on our solar system, its components, their movements, and their likely history

Asks readers a true-or-false question about the physical characteristics, diet, or behavior of pets that the reader can find the answer to by turning the page