Chemical and Physical Changes in Digestion

color change

Peristalsis

Fever

Chewing

Folding

Chopping

saliva

Stomach acid

Burning

Color change

Exo/ Endo thermic reaction (TEMPERATURE)

Bubbles produced

Production of a gas

Smell change

True

False

Seeing a gas being produced

Witnessing the formation of a precipitate

Experiencing teeth cutting and crushing the sandwich into smaller pieces

Observing digestion with HCl in the stomach

Physical changes in my experiments, like melting ice into water, always involve the production of heat or light

Chemical changes in my experiments, like burning a piece of paper, change the size of a particle of a substance

Chemical changes in my experiments, like rusting of iron, transform a substance into a completely different substance

Chemical changes in my experiments, like dissolving sugar in water, do not change the identity of the substance

Teeth acting like a knife, cutting and crushing food into smaller pieces

Food being tossed around like clothes in a washing machine in the stomach

Food getting mixed with saliva, which is like a chemical solution containing enzymes

Food being digested with HCl, like a chemical reaction happening in the stomach