Physical or Chemical? breaking down/decaying of organisms

How many molecules of salt is this? 4NaCl

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Physical or Chemical? Your saliva begins to break down food once you chew it

Physical or Chemical? Water is heated and begins to bubble as it changes states of matter

Element or Compound: Written as a chemical formula

Physical or Chemical? An apple begins to rot

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Both the esophagus and the small intestine are involved in the digestion of food. The esophagus squeezes food into the stomach by wave-like muscle contractions. Peptidase enzymes in the small intestine break food molecules smaller

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