Individually, think about the problem and try to come up with a hypothesis about the effect of temperature on carbon dioxide production by yeast.
Try 1 spatula of yeast per 50 ml of grape juice in a 100ml conical flask, fitted with a bung carrying a delivery tube.....
2) Varying temperature
- what range of temperature is sensible to investigate?
- what actual values of temperature to choose - how many temperatures?
- what method of temperature control?
3) What factors are to be kept constant (and how) ?
4) How to organise team work to gather results.
The same criteria apply to this as to other assessments, so it is important to research and justify each stage.
Day |
Time | Elapsed time from start |
Temperature C |
Gas volume at |
Reading taken by (name) : |