Question

How will you identify the following?
-- A glass : Is it made of plastic, steel or glass?
-- A rod : Iron or aluminium?
-- A door : Wooden or glass?
-- A white powder : Salt or chalk powder?

Answer 1

1: by it's sound (by hitting something the glass a
little gently)
2 : by hitting ti if it is made up of iron it will not
bend easily but if it is made up of aluminium
it will bend easily
3 : by it's sound
4 : salt will have the molecules a little larger
than chalk powder

Hope it helps and if it does then please mark as brainlist
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Answer 2

Answer:

plastic

iron

wooden

chalk powder

Explanation: