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You will need
· used 1 or 2 litre colourless mineral bottle with the
spout removed.
· White tissue or cotton wool
· 2 mugs full of dry black peat from the bottom of a local
bog (crumbled into small pieces)
· 4 mugs full of dry moss peat
· 1 mug full of bark chips
· 1 handful of fresh dry Sphagnum Moss
· labels
What to do
The relative proportions of the different layers in the raised
bog are shown in the diagram. These are based on a 1m long profile.
The depth of each layer in your profile will depend on the length
of the bottle used and should be calculated beforehand in maths
class. As a general guide line 10% should be cotton wool or white
tissue paper (representing lake marl), 20% black peat (representing
the fen stage), 10% bark chips (the woodland stage), 50% moss
peat (the raised bog stage) and 10% fresh Sphagnum Moss (representing
the living bog surface).
1. Partially fill the bottle with cotton wool or tissue paper,
followed by fully dried black peat and pine wood in the proportions
shown in the diagram.
2. Fill in the layer of moss peat and the fresh dry Sphagnum
moss.
3. When the various layers have been completed, seal the top
of the bottle with tape.
4. Label the layers in the model as shown in the diagram and
store upright.
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