Question

Three groups of materials are given below
Group 1: wood – rock – rubber
Group 2: iron – copper – gold
Group 3: glass – clear water – air
Identify and explain properties which are common for all members of each group.

Answer 1

Answer:

group 1 -

Explanation:

Answer 2

Group 1 i all are naturally found in nature

ii all are opaque objects

iii all are not good conductors of elecricity

Group 2 i all are metals

ii good conductors of electricity

iii all are opaque objects

Group 3 i all are transparent objects

ii found naturally in the nature

hope it helps