| ActivityExperimenting with Digestion | Now that you have some of your beginning ideas out on paper, let's think about the candy bar's journey into the body a step at a time. To do this you will engage in several activities. Keep in mind that you want to know more than just where the candy bar went but also what is happening to it. | |
| | Student Procedure: During the activity, record your observations every 20 seconds on paper. | | 1. Place the cracker in your mouth. If you did not bite the cracker or chew it would you be able to swallow the cracker whole? | | 2. Now let the cracker sit on your tongue for one minute. | | 3. Chew on the cracker for 1-2 minutes but do not swallow. | | 4. Swallow or dispose of the cracker mush after 2 minutes. | | Answer Questions below: | | What is happening to the cracker as soon as you put it in your mouth? | | How did the cracker taste when you started chewing? | | What role do your teeth have in changing the crackers? | | What other form of digestion is happening as you chew? | | Do you think your body is able to get energy from only chewing on the cracker? Explain why or why not. | | What happens to the food? | | What about the nose? Does this have any effect on digestion? | | Once you have answered these questions, be prepared to discuss your findings in whole group. | |
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