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technicians notes
Resource
List
Create
Your Own Water Cycle
- a mug
- some hot water, straight from the kettle
- a metal spoon
Hard
Water
- 3 clean transparent jars
- rain water
- tap water
- detergent
- teaspoon or spatula
Investigating
Temporary and Permanent Hard Water
- 6 boiling tubes and bungs
- 5 beakers
- distilled water or rain water
- tap water
- solid calcium hydrogencarbonate
- solid calcium sulphate
- detergent (soap solution) in a dropping bottle (or with a pipett)
- spatula
- glass stirring rod
- test tube clips
- test tube wrack
- safety glasses
Science Investigation
- distilled water
- local tap water
- local tap water that has been boilied
- sea water
- mineral water (you could try several different brands)
- distilled water with a little sodium chloride dissolved in it
- distilled water with a little calcium chloride dissolved in
it
- dropping pipette
- soap solution
- test tubes and holders
- bunsen, heat mat
pH Testing
- 5
samples of water - tap water, distilled water and 3 other sources
(this could be tap water from a different area, pond water, river
water, sea water)
- narrow range pH paper
- several clean, dry
test tubes
- test tube rack, or
large beaker to hold the test tubes in
Water Purity
- 5 samples of water
- tap water, distilled water and 3 other sources (this could be
tap water from a different area, pond water, river water, sea
water)
- accuate thermometer
- several clean, dry
boiling tubes
- clamp stand and boss
- test tube rack, or
large beaker to hold the boiling tubes in
- safety glasses
Water Clarity
- 5 samples of water - tap water, distilled water and 3 other
sources (this could be tap water from a different area, pond water,
river water, sea water)
- filter funnel and paper
- several clean, dry beakers
Unusual Water
- polythene strip
- dry soft cloth, like a duster
investigating the water cycle |
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