Technicians’ advance planning sheet Module C1: Air quality This table shows items which may need to be ordered or prepared in advance for this module. It does not list standard items, for example, test tubes, beakers, thermometers etc. Full details of the resources needed for each activity are in the Requirements section of the Teacher & Technician notes published by OUP, which also include safety information for the activity. Activity Item(s) Quantity AC1.1.1 Transparent empty box Clapper bell in round flask Rubber bung to fit flask 1 1 1 Wire the clapper bell to a length of rubber tube and suspend it inside the flask. Do not use wire supports in place of the rubber tubing. AC1.1.2 Stain Devil ® may be useful for cleaning test tubes after this activity. AC1.2.1 Birthday candles At least 15 AC1.2.2 Test tube of oxygen gas with bung 1 AC1.2.3 2-litre plastic soft drinks bottle with the bottom cut off Rubber bung to fit the neck of the bottle trough Sheet aluminium platform Beer-bottle top, with the plastic insert burnt out Blow torch Red phosphorus 1 1 1 1 1 1 0.5 g The sheet aluminium platform should be constructed so that it stands above the level of water when it is resting on the bottom of the glass trough, and the glass trough is half filled with water. It needs to fit inside the plastic bottle. Burn out the plastic from inside the bottle top in a fume cupboard. AC1.3.1 Diet cola Mentos Paper tube Square of card 2-litre bottle 1 packet 1 1 The paper tube should be just long enough to hold a packet of mints and just wide enough so that the mints to stack up on top of each other but slide through the tube easily. AC1.3.3 Journal 4 per pair from activity sheet AC1.4.1 Roll sulfur Acid-base indicator solution Paraffin 1 < 0.5 cm cube 1 bottle Few cm3 AC1.5.1 A variety of timing devices 1 per pair Timing devices include digital stop clocks and older analogue stop clocks. It is important a range of different timing devices are used.
AC1.5.2 Small pieces of broken pottery 2 per group AC1.5.3 Double sided sticky tape 1 roll AC1.7.1 Solid fuels Liquid fuels Tin lids Few small pieces Few cm3 2 Ensure tin lids have previously been heated to remove any volatile coatings. AC1.8.1 Potassium chlorate (V) (reagent grade) Jelly baby Oxygen Charcoal 15 g 1 per demonstration 1 tube per group 1 small piece per group AC1.9.1 Ethanol Few cm3 AC1.9.2 500 ml plastic soft-drink bottle with base removed Washing-up liquid Glycerol Propan-2-ol 1 8 cm3 4 cm3 50 cm3 AC1.9.3 Anhydrous copper sulfate or cobalt chloride paper Fuel to burn 1 container 1 piece Few cm3 Technicians’ advance planning sheet Module C2: Material choices This table shows items which may need to be ordered or prepared in advance for this module. It does not list standard items, for example, test tubes, beakers, thermometers etc. Full details of the resources needed for each activity are given in the Requirements section of the Teacher & Technician notes published by OUP, which also include safety information for the activity. Activity Item(s) Quantity Notes AC2.1.1 Digestive biscuit Polythene webbing that holds four-pack drinks Fruit jelly Ceramic house brick Steel tool Lengths of thick wooden dowel Copper wire, steel wire, nylon filament, rubber bands 3 cm x 10 cm samples and about 0.5 mm thick: sheet 1 1 1 1 1 Few pieces Several of each Several of each Steel tool could be a chisel, screwdriver or hammer.
AC3.1.2 Climate Through Time posters 1 per group of 8 students The posters can be ordered free form the British Geological Survey. AC3.2.1 Tray Dry sand Gravel and small pebbles (various sizes) Talcum powder, or a similar fine harmless powder Drinking straws, or the barrels of pens with the ink tubes removed 1 per group A mixture of sand, gravel, and talcum powder enough to about ½ fill each tray 1 per student AC3.4.1 Food labels (possibly photocopied from packets) covering enough examples for students to estimate their total salt intake in one day Salt pot with table salt A wide selection 1 AC3.5.1 Castor oil Ethanol Sodium hydroxide solution (5M) Sodium chloride About 5 cm3 5 cm3 10 cm3 10 g AC3.5.2 Universal indicator paper and colour chart Hydrated sodium crystals Calcium hydroxide Dilute hydrochloric acid (2M) 1 book per group 1 container per group 1 container per 1 container per group AC3.6.1 Concentrated sulfuric acid Sodium chloride Universal indicator paper Iron sulfide, or sodium sulfide Hydrochloric acid (5M) Sodium chlorate(I) solution (14%) Blue litmus paper 10 cm3 20 g 1 book Few g About 20 cm3 About 50 cm3 Few strips AC3.7.1 Electrolysis cell Sodium chloride solution (30 g/dm3) Universal indicator paper 1 per group 100 cm3 per group Few strips per group See guidance sheet for details of the electrolysis cell.