Physical and Chemical Changes

Fill in the blanks in the following statements using the wordsgiven in the box.
rusted, colourful, substance, chemical, physical,reversible, iron oxide, object
(a) Making sugar solution is a ____________ change.
(b) A physical change is generally____________.
(c) Grinding of wheat grain changes its size. It is a____________ change.
(d) Iron benches kept in lawns and gardens get____________.It is a _________ change because a new _________ is formed.