Books in Rookie Read-About Science: The Universe series

So how do you tell the difference between turtles and tortoises?The natural world comes alive for young readers (Ages 6-7) with Rookie Read-About "RM" Science! With striking, full-color photos and just the right amount of text, this series immediately involves young readers as they discover intriguing facts about the fascinating world around them.They're both reptiles. They both have shells and move fairly slowly. One way is to ask yourself if they're found mostly in water or on land. These identification clues and many more can all be found in What's the Difference? Turtles and Tortoises.

From levers to pulleys, simple machines make our lives easier.Rookie Read-About Physical Science series introduces the youngest readers to physical science concepts. Each book features critical-thinking questions throughout the text; a simple, hands-on experiment; a glossary and more. This series is aligned to the Next Generation Science Standards. They help roll, lift, cut, tip, and turn everyday objects. In Simple Machines readers will dig into the science behind how we use simple machines to get the job done.