Lesson 05 · Check-in 1

Use this discussion as an opportunity to formatively assess students’ recollection of what type of changes are chemical reactions and what are not. If students seem unsure of the science ideas or have not yet completed the Bath Bombs Unit, you may wish to spend more time reinforcing the ideas of chemical reactions.

Navigate to looking at the data of food in the mouth. In our effort to figure out what is happening to complex carbohydrates in the digestive system, it might help to figure out if there is a chemical reaction or other changes happening to the complex carbohydrates in the cracker when it is in our mouths. One way to do this is to figure out whether the complex carbohydrates are changing into something different in our mouths.

Say, It sounds like one way that we can figure out if the changes that are happening in the mouth are a chemical reaction or not is by figuring out if we are making new stuff from old stuff or if we are just crunching old stuff into smaller pieces. Let’s look at some data to help us figure this out!