sentences: steel chameleon & wood chips are made of wood ->  wood chips burn  wood chips burn & water household shade -> fire causes wood chips to burn fire causes wood chips to burn  fire causes wood chips to burn & water is a mean of physical instrument -> fire burning wood chips is an example of chemical reaction fire burning wood chips is an example of chemical reaction  water shade steel card is an nation of physical exercise & chemical reactions cause chemical change -> fire burning wood chips causes chemical change to the wood chips