Hi there!
Here's a list of possible areas they could test long responses (sorry i dont have crteria)
Chemical Earth:
- industrial separtion processes on mixtures (ie. properties of mixture used in separation, products of separation and their uses, issues of waste from these processes)
Metals:
-different metals through history and their uses including alloys and the reason for the production of alloys (properties)
-why they are more metals available to use now than 200 yrs ago
-separation processes, chemistry and energy considerations involved in the extractions of copper from ore
-steps to recycle aluminium
Water:
-significance of different states of water on Earth
Energy:
-role of the production of high energy carbohydrates from co2
-properties and uses of the different allotropes of carbon
-conditions under which explosions occer and the need for safety
Hope this helped
