GRADE 10 PRACTICAL 3 Memorandum.docx - GRADE 10 A. LIFE...

GRADE 10 LIFE SCIENCES PRACTICAL 3
Memorandum TOTAL: 30
A. COMPARISON OF PULSE RATE BEFORE AND AFTER EXERCISE
In
rest
Afe
r 2
minutes
sitng
qu
ietl
y
Afe
r 4 minutes sitng quietl
y
Afe
r 2
minutes
exerci
se
Afe
r 2 minutes rest
Afe
r 4
minutes
rest
Afe
r 6 minutes rest*
Afe
r 8
minutes
rest*
Afe
r 1
0 minutes
rest*
50
60
70
80
90
100
110
Time
Pulse rate (beats/minute)
The graph above is only an example
Criteria:
 Correct type of graph – line graph √
 X-axis supplied with label √
 Y-axis supplied with label √
 Correct scale used at each axis √√
 Y-axis starts at 50 √
 Use a ruler to connect points on graph √
 Suitable heading for graph √
 Points marked correctly √√
If not a line graph; do not give marks for ‘correct type of graph’ or ‘points marked correctly’
(10)
2. The pulse rate increases during exercise √
Decreases gradually afer the exercise session √
To a level just above the original pulse rate √ (3)
1

3.