Boiling water was placed in containers made of four different materials. A table is provided.
Water Temperature (°C)
Material
O Min
5 Min
10 Min
15 Min
1
100
87
85
81
2.
100
96
93
91
3
100
78
71
63
4
100
92
87
83
Based on the data, which material was the best insulator of heat?
Material 1
Material 2
Material 3
Material
