Page 70 - Big Ideas Year 10 sciPAD 2025

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70 SCIPAD - BIG IDEAS - BOOK 2
FUELS AND CLIMATE CHANGE
Comparing Complete and Incomplete Combustion
Aim: To compare the amount of energy released by complete and incomplete
combustion.
Equipment: Bunsen burner, tripod, gauze, 100 mL measuring cylinder, 2 x 250 mL beakers,
stopwatch, thermometer, heatproof mat.
Method: 1. Set up your tripod and gauze mat on a heatproof mat.
2. Add 100 mL of tap water to both beakers.
3. Place one beaker on the gauze mat and record the temperature of the water.
4. Ignite your Bunsen burner and leave the air hole closed.
5. Place the Bunsen burner underneath the tripod and start the stopwatch.
6. Record the temperature every 10 seconds until the water reaches 80 °C.
7. Repeat the investigation, but this time with the air hole open.
Results:
Yellow Flame Blue Flame
Time (s) Temperature (oC) Time (s) Temperature (oC)
0 0
10 10
20 20
30 30
40 40
50 50
60 60
70 70
80 80
90 90
100 100
110 110
120 120
130 130
140 140
150 150
160 160
170 170
180 180
190 190
200 200
210 210
220 220
230 230
240 240
250 250
260 260
270 270
280 280
290 290
300 300
Hot water
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