193bfe83_Videos__Flubber__How_Benchmark_Was_Met
[Benchmark] 12.C.ECa Identify, describe, and compare the physical properties of objects. [How Benchmark Was Met] 
Grant observed that the properties of the flubber changed. He noted that individual chunks began to become “sticked to each other,” that it began to ooze down through the holes of the basket (“It’s going down”), and that if he pressed his hand into the flubber, it retained his handprint.
Videos. Flubber
How Benchmark Was Met