(6 marks)

A student tests three liquids with universal indicator:

A car of mass 800 kg accelerates at 2 m/s².

(a) Name the male part of a flower. (1 mark) (b) What is pollination? (2 marks) (c) After fertilization, which part of the flower becomes the fruit? (1 mark) (d) Give agents of pollination. (2 marks) 22. Forces and motion (6 marks)

| Liquid | Colour of indicator | pH | |--------|--------------------|----| | Lemon juice | Red | 2 | | Soap solution | Blue | ___ | | Water | Green | 7 |