(a) Consider the substance listed below:
carbon dioxide, gold, bronze, iron, oxygen and ink

From the list, select the substance that:
(i) supports burning
(ii) is used as jewellery;
(iii) is used for making statues

(b) (i) Name two diseases associated with the circulatory system of humans.
(ii) State one way of preventing each of the diseases named in (i)

(c) Give two examples of each of:
(i) major plant nutrients;
(ii) minor plant nutrients.

(d) (i) State two properties of a good thermometric liquid.
(ii) Give two examples of a good thermometric liquid.

Theory