Work through The Introduction to the Periodic Table Prezi then check your understanding using the auto graded test. This is primarily intended for Rotorua Boys High year 11 students but anyone can use it. Let me know if you have any problems By the end of this unit you should know: what the atomic number […]
A couple of revision videos if you prefer animation to static text. You require a slightly longer attention span than that of a goldfish for each video.
A tale of life and death in the garden as aphids and lady birds battle for survival in the hot summer sun on their swan plant universe. Resources are at a premium. The swan plant starts the food chain and it all ends horribly for aphids. Aphids, ladybirds, ladybird larvae and caterpillars are unaffected by […]
Chemical warfare in the garden, Early summer and dark chemical processes are at work in the bright sunlight. Swan plants are producing and stockpiling deadly molecules in their sap and leaves. A chemical defence system designed to kill insects foraging for food. The main components of this molecular arsenal are cardenolide glycosides, steroids with an […]