根据英语释义写出单词或词组that cannot be seen - cut something into pieces

根据英语释义写出单词或词组that cannot be seen - cut something into pieces-kinds-join-power-put under the ground-an invisible form of energy-something that gives you a surprise-something that is used for cooking food-give light to a place -think about what something might be like --give a machine the power to work--