This activity is perfect a few days (1-3days) into the dimensional analysis unit. I use it after my "Nonsense Problems" assignment that can be found in my Store. This assignment makes a microwaveable Rice Krispy Treat recipe while bringing the concept into practical use. As a plus, Students see what happens to marshmallows in the microwave. A very edu-citing and tasty Activity.
Answer Key Video - https://www.youtube.com/watch?v=Bj4YbqQ4oqQ