Ice Cube Keeper Engineering Challenge
Ask: How will my ice cube stay cold?
Next, we imagined what our ice cube keeper would look like, planned, and created it.
I predict that my ice cube will stay frozen 3 hours.
My table:
| Time: | Measurement: | Observations: |
| 9:30 | 4 cm. | Jagged, rectangular |
| 10:11 | 4 cm. | More like a circle now. |
| 12:08 | 2 cm. | |
| 1:00 | 2 cm. | |
| 2:30 | A puddle | |
I might try this to keep my ice cube from melting as soon as it did. My reflections: I think on one of the designs that worked really well, the person put this special foam together with snow under it. It had a hole for the ice cube, and it stayed cold for a long time. It was like a freezer.
To improve my design, I noticed my ice cube didn’t stay cold because there were a lot of holes that let the heat come in, so I would fix that.
I really liked how small yours was and how it was fun having your ice cube keeper right next to mine. I also like how you said the other third graders design was so good…..Wave’s