My cup insulator has a blanket on the inside and a piece of foam surrounding it. There is also a piece of black paper with our team name on it as decoration on the outside. Velcro is on each side to connect the material to below the handle. The lid is made of black material, to absorb heat. Our insulator works to some extent. After twenty minutes, our cup of water lost about 13 degrees Celsius of temperature, which is a significant improvement compared to the control.

What am I proud of?

I am proud of the fact that my teammates and I all had very good ideas to make the insulator better, including the idea Andy made to have a piece of paper around the insulator as decoration. I am also proud that our insulator worked.

What would I do differently?

I would try to make the lid more solid, maybe using styrofoam like the other group did. The lid we used was too soft, flexible, and thin, and it kept letting the air out. I would also try making the sides of the insulator thicker, which would decrease the amount of heat escaping.

What was the hardest thing about this project?

The hardest thing about this project was probably getting the pieces of the blanket together. When we arrived at the materials table, there was almost no blanket left. The pieces were all too small. Therefore, we tried gluing them together. That took a while. For some reason, the blanket kept falling apart and there was fluffy stuff everywhere, which wasn’t really helpful.