Activity #14 part II: Breakdown Lab

Today students did activity 14 part II which was a lab on digestion. Students compared the size of food to time of digestion. Students started out by defining mechanical breakdown and chemical breakdown. After students defined these terms, students set up their lab materials. We discussed which variables were independent and which were dependent. Students made an hypothesis on which size of food (tablet) will dissolve the fastest. Next, students set up their trays which tablets and added 5 ml of vinegar. Then students measured the amount of time it took to dissolve the tablets. Finally, students created a line graph that displayed size of food to time to digest food. After they made their graph, students had to write conclusions about the experiment.

Homework: If students did not finish their conclusion they must do it for homework!