C3.3.1 - Break in! (Filtration and Evaporation), C3.3.2 - Smelly problem (Litmus, UI and Neutralisation), C3.3.3 - Message in a bottle (paper chromatography)...
AQA A level Product design p1-Technical principles
By: Katie Brennan
1.2-Performance characterisics of papers and boards, 1.2-Performance characteristics of polymer based sheet and film, 1.2-Performance characteristics of woods...