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Yeast Experiment

Aim

To determine the conditions needed for the growth of yeast.

You Will Need:

5 test-tubes / 3 beakers for water / yeast / sugar and salt / 5 balloons.

Method:

  1. Cream 30 g of yeast together with 5ml sugar in test-tube number 1..
  2. Cream 30 g of yeast alone in test-tube number 2.
  3. Cream 30 g of yeast together with 5ml of salt in test-tube number 3.
  4. Cover each of these test-tubes 1, 2 ,& 3 with a balloon and put the three tubes in a beaker with warm water (24 °C—29 °C).