Answer:
Penny and screws are metals whereas rubber, wires and bottles are non-metals.
Explanation:
Penny and screws are metals because they have shining surfaces, hard body structure and good conductor of heat and electricity while on the other hand, rubber, wires and bottles are non-metals due to soft body structure, no shining surfaces and considered as insulator means unable to conduct heat and electricity. So which substances having the characteristics of hard shiny surfaces and good conductor of heat and electric current we considered them metals.
