Conditions on Earth are becoming more and more extreme and kids want to learn about it! Is it true that tornadoes have the strongest winds on Earth? Yes! Their winds can reach 300 miles per hour (483
化石如何保存過去的秘密？這本書將帶領讀者從最基本的問題出發，探索化石的定義與形成過程。讀者將了解不同種類的化石，以及它們如何幫助科學家拼湊出地球史前的樣貌。從恐龍的化石到微小生物的遺跡，內容豐富又條理清晰。對喜歡大自然、恐龍或古生物的孩子來說，本書既是入門知識，也是引發好奇的第一步。What kinds of fossils exist, and where are they found?What are fossils and how do they form? This book answers these questions and many more about the fascinating world of fossils. From the discovery of dinosaurs to the information fossils reveal about Earth's prehistoric past, everything readers need to know is covered!
Conditions on Earth are becoming more and more extreme and kids want to learn about it! Is it true that tornadoes have the strongest winds on Earth? Yes! Their winds can reach 300 miles per hour (483
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-thinki
"This book details the science of electricity and magnetism. It explains how these forces work, how they are related, what uses people have found for them, and more."--
