pracs

module 5

• 1.4 egg prac: importance of hard calcium carbonate shell, cushioning, water supply and nutrient supply from albumen, chalaza keeps suspended

• 1.5 fish dissection: fins/skin covering not suitable for a terrestrial environment. gills, swim bladder, stream lined shape ideal for aquatic

module 6

• tower construction: height to weight ratio, different shapes and structures etc

module 7

• modelling the natural greenhouse effect: heat lamps, thermometers and alka-seltzer tablets (produce CO2)

• ocean acidification: salt water with HCl, dissolves CaCO3 sea shells

module 8

• waste audit: sort and weigh waste based on type

• chip packet: ratio of chip weight to area of packaging