Make+a+closed+system

=Can you make a closed system?=

Task
Your task is to plan and make a closed system. Look at these pictures below and while some of them are [|terrariums] which are not closed they should give you the general idea.

Some links to get you in the mood


[|A commercial link]

[|A terrarium in a wine bottle]

[|moss-age in a bottle]

[|Paula Hayes' terrarium gallery]

Of course YouTube has some stuff
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=Some ideas for your write up=


 * What will need to be considered to create a closed system? Think of both biotic and abiotic factors.
 * What materials will need to be circulating around your closed system?
 * What external factors will need to be considered
 * What species will you be using in your closed system?
 * What food chains will exist?
 * Can you look at a food web of your system?
 * What equipment will you need?
 * How will you measure the success of your system?
 * What natural closed systems can you compare yours too. Is there anything you could learn from these natural systems?
 * What observations will you need to take? How will you record these?

=Deadlines=

Year 12 - Plan handed in before Carnival break Year 13 - I should already have it!!!!!