Aim: TO Demonstrate the effects of anaerobic respiration ( muscle fatigue)
hypothesis: the muscle will get tried opening and close the peg.
Equipment: a spring-loaded clothes peg.
Method:
1. Hold the clothes peg as shown in the diagram below
2. Relax your fingers so that the peg closes all the way
3. Squeeze your thumb and forefinger so the peg so the peg is fully open.
4. Repeat steps 2 and 3 as quickly as you can until you experience muscle fatigue.
Results: it made the muscles in my arm tired and hard to open and close the peg.
conclusion/ discussions: I saw a peg opening and closing lots of times. because I was looking at the peg.
Evaluation: I am not sure. there is nothing to change