Classify the following changes as physical or chemical. Be able to defend your choice. A broken leg mends itself?..........(Is it physicalbecause its still the same compounds?) Grass grows?............(Im thinking the same thing,its still grass, right?) An infant gains 10 pounds? (physical?) A rock is crushed to powder? ( Its still the samecompound, right? Are all of these physical changes?) Classify the following changes as physical or chemical. Be able to defend your choice. A broken leg mends itself?..........(Is it physicalbecause its still the same compounds?) Grass grows?............(Im thinking the same thing,its still grass, right?) An infant gains 10 pounds? (physical?) A rock is crushed to powder? ( Its still the samecompound, right? Are all of these physical changes?)
Explanation / Answer
A broken leg mends itself?..........chemical Grass grows?............chemical An infant gains 10 pounds? ........chemical A rock is crushed to powder? ...........physical