Earth & physical science
Posted in Khoa học tự nhiên on Tháng 5 21st, 2013
Tóm tắt: The book is divided into three parts : 1.Interactions in the Physical World consider Lights, Mirrors, and Lenses ; Motion and Forces ;Work and Simple Machines ; Electricity 2. Earth materials and resources include Rocks ; Ressources and the environment 3. Change through time consider Clues to Earth’s past ; Geologic time. Mô [...]