Название: Gravity (Readers Advance; Science Readers , Grade 4) Автор: Myrl Shireman Издательство: Mark Twain Media Год: 2006 Формат: True PDF Страниц: 23 Размер: 12 Mb Язык: English
Have you ever wondered how gravity works? Written for students in grade 4, Gravity tells students how it works. Students also learn how gravity affects a person’s weight, space travel, and even the orbits of the planets! This book includes a glossary of bold-faced vocabulary words, reading activities, an index of terms, and an answer key.