Editing Classroom Digestion (section)

== Demonstration ==

;Preparation:
* Put the candies into the paper lunch bag and seal it with tape. Put the paper lunch bag inside the plastic shopping bag and tape it shut. Put the plastic shopping bag inside the paper shopping bag and tape it shut. Fill the spray bottles with water.

;Presentation (Stage and Hands-on):
''Note: This demonstration does not work well for a science night or similar hands-on events, since it requires a large number of volunteers. Use this for hands-on events where you are working with small groups of students at a time.''
# Ask for volunteers from the audience. You will need 14 volunteers, so keep asking for volunteers until you have enough! Have the volunteers stand in two lines of seven, parallel to the audience, and give the two volunteers at the front of the lines the spray bottles.
#* If you are working with a class sized group (~30 or less), then you can have all the students participate. Have the extra students spread out between the 2nd, 3rd, 4th and 6th groups.
# Explain to the volunteers that they will be acting like our digestive system, and will be "digesting" the food that you give them. Make sure they know that each volunteer will pair up with the one across from them.
## Give the paper bag to the 1<sup>st</sup> volunteers. They will spray it down, then pass it to the next two. 
## The 2<sup>nd</sup> volunteers get to rip up the bag, but they do not rip it all the way open. After ripping a lot of holes in the paper bag, they pass it to the next two.
## The 3<sup>rd</sup> volunteers rip the paper bag open, but they leave the plastic bag inside and pass it to the next two.
## The 4<sup>th</sup> volunteers rip open the plastic bag, revealing the small paper bad inside. They leave the bags inside of each other, and pass it to the next two.
## The 5<sup>th</sup> volunteers take out the small paper bag and open it, showing the candies inside. They give the candies to you, and then pass the three bags to the next two.
## The 6<sup>th</sup> volunteers crumple the bags together into a small ball, and pass it to the next two.
## The 7<sup>th</sup> volunteers take the crumpled up bags and throw them away.
# Pass out the candies to the students who volunteered. Delicious science!