Technicians’ lists of equipment Downloaded from www.catalystscience.co.uk Catalyst 3, Unit G: Environmental chemistry Lesson G1: Environmental chemistry Main activities G1a Test your soil For each group: two centrifuge tubes universal indicator solution dry soil sample access to a centrifuge indicator colour chart Lesson G2: Acid rain Starter activities Capture interest (1) three samples of water at different pH values (one neutral, other two acidic) test tubes dropper universal indicator solution universal indicator paper colour chart for universal indicator pH meter Main activities G2a Acid rain and plants For each group: cotton wool two polythene bags two Petri dishes of cress seedlings two elastic bands two Petri dish lids two sticky labels sodium metabisulphite solution two dropping pipettes labelled ‘acid rain’ distilled water Cress seeds will need to be sown a few days in advance of the lesson. G2b Take a rain check For each group: plastic drinks bottles (about 5) This list is in Microsoft Word, so it can be customised to fit each school’s requirements. 1 Technicians’ lists of equipment Downloaded from www.catalystscience.co.uk Catalyst 3, Unit G: Environmental chemistry universal indicator paper (1 book) scissors For the Teacher demonstration: box of matches universal indicator solution test tube clamp stand and clamp Lesson G2 Investigate: What makes rainwater acidic? Starter activities samples of water at different pH values (one neutral, one acidic, one alkaline) test tubes dropper universal indicator paper colour chart for universal indicator pH meter Lesson G3: More about acid rain Main activities G3a Acid, metal and rock For each group: watch glasses dropper hand lens very dilute sulphuric acid (0.005 mol dm–3) small pieces of zinc, iron and lead small pieces of chalk, marble and granite Lesson G4: Global Warming Starter activities Capture interest (1) glass jar or plastic propagator computer This list is in Microsoft Word, so it can be customised to fit each school’s requirements. 2 Technicians’ lists of equipment Downloaded from www.catalystscience.co.uk Catalyst 3, Unit G: Environmental chemistry interface with two temperature probes stand and two clamps access to a sunny window sill Capture interest (2) glass filter funnel U-tube side arm tube connecting glass tubing pump candle limewater trough ice Lesson G5: Looking at the evidence Main activities G5a Weather forecast printed copies of newspaper weather forecasts video of a TV weather forecast. This list is in Microsoft Word, so it can be customised to fit each school’s requirements. 3