Chemistry teacher 2

11 mins 34 secs

6 mins 50 secs

1 min 24 secs

26 mins 53 secs

2 mins 33 secs

9 mins 47 secs

5 mins 35 secs

28 secs

5 mins 23 secs

25 mins 24 secs

40 secs

9 mins 12 secs

5 mins 19 secs

5 mins 8 secs

4 mins 19 secs

2 mins 6 secs

3 mins 29 secs

42 mins 21 secs

11 mins 34 secs

1 min 31 secs

4 mins 10 secs

8 mins 20 secs

17 secs

3 mins 56 secs

1 min 13 secs

2 mins 10 secs

18 mins 47 secs

9 mins 10 secs

3 mins 19 secs

5 mins 18 secs

6 mins 53 secs

1 min 50 secs

8 mins 26 secs

51 secs

9 mins 53 secs

7 mins 31 secs

53 secs

1 min 53 secs

1 min 5 secs

5 mins 44 secs