Editing Two Can Two-Can (section)

== Demonstration ==

# Put the students into pairs, and give the demo supplies to each pair.
# Have each pair of students tie their soda cans to the popsicle stick. Have one student in each pair hold up their finished model, and the other student adjust the can strings as needed until the cans hang very close to each other (1/2 in apart).
# Have the students take turns holding up their models, and their partner using the straw to blow air between the hanging cans. They should see the cans move towards each other!
# Now have them take turns holding up their models while their partner blows air between the hanging cans without the straw. ''Make sure they stand the same distance from the cans as they did when they used the straw''. Can they still make the cans move towards each other?