FORM 2 SCIENCE REVISION
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The S.I unit for energy is...…(能量的国际标准单位)
Joule
Food contains of ............ energy. (食物含有什么能量)
chemical
When two different types of objects are rubbed together, .........are transferred from one object to the other. (两个物体摩擦,什么会转移)
electrons
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