Equipment

Equipment

__Biology:__ 4 50cm x 50cm quadrats 3 Plastic water bottles (normal size and 1L size) White water-proof tray 2 magnifying glasses 3 nets for scooping up samples of macro-invertebrates (small mesh size as possible so that we could catch small macro-invertebrates) Water-proof gloves 1 pair of wellingtons. medium size pair. Thermometer a chart that shows different species of macro-invertebrates (we used this for Comparing River Lab) 1 pH probe lots of smiles thank you :) Physics:

Chemistry:
 * 2 50 mL graduated cylinders (±1ml)
 * 6 Erlenmeyer flasks
 * 6 rubber stoppers
 * 400 mL of drinking water (will be collected on Monday)
 * 400 mL of West Lake water (will be collected on Monday)
 * 300 mL of 1 molar HCl
 * pH probe (±.005)
 * 1 electronic balance(±.005 grams)
 * 1 pipette