We have been talking about "matter" this past month, learning about the different states of matter and about how we can change the states of matter. This challenge was to work in teams to build a freezer using a container of their choice and one or two insulators.
Some of the containers to choose from...
Some of the insulators to choose from...
Let the building begin!
All our freezers are done. Now we wait. After an hour, even our "control ice cube" (which was sitting in an open cup in our room), had still not melted much.
2 hours later, we all checked our ice cubes in our freezers to see if anything was left! Some bags were full of water! A few others had small ice cubes left. And a couple had ice-cubes that had only melted slightly!
AND... the freezer that keep the ice cube the coldest...
We talked about why this might have kept the "warm air" away from the the ice cube.
Then, everyone took time to reflect on their project and what they learned.
Here are a few of our reflections...
