| 
					著者:
				 | Mullins, Matt. | 
| 
					题名:
				 | Energy / , | 
| 
					出版发行:
				 | 出版地: New York 出版社: Scholastic 出版日期: 2012 | 
| 
					载体形态:
				 | 48 pages 22cm. | 
| 
					附注:
				 | Introduces energy and its properties, including the different types of energy and how they balance, and how to conserve energy. | 
| 
					主题词:
				 | Force and energy | 
| 
					主题词:
				 | Juvenile literature |