Here, we were told that all the metal blocks looked similar, but if they were of different colors, would it still make sense to conclude that two of them were probably of the same material?

Use your knowledge of science to answer these questions:

A student finds four metal blocks that are all the same size and have about the same appearance. He measures them all with the same instrument and records their weights in the following table.

	Weight
Block #1	35
Block #2	20
Block #3	50
Block #4	35