|
Processes
|
| What we used to collect
carbon dioxide |
|
|
1 wine bottle nozzle |
|
|
1 basin half filled with water |
|
|
1 glass cover |
|
|
bicarbonate of soda |
|
|
white vinegar |
|
|
blue tac |
|
|
1 length of rubber tubing (about 1m) |
|
|
1 bottle (for interaction of vinegar and bicarbonate
of soda) |
|
|
1 bottle filled with water (for collection of
cabon dioxide) |
|
|
|
| Collecting carbon dioxide |
|
1.
|
Fill Bottle B up to the brim with water |
|
2.
|
Place a glass cover over the mouth of Bottle B |
|
3.
|
Invert Bottle with glass cover into the basin
of water |
|
4.
|
Remove the glass cover |
|
5.
|
Put 2-3 teaspoons of bicarbonate of soda into
Bottle X |
|
6.
|
Insert the free end of the rubber tube into Bottle
B |
|
7.
|
Pour some vinegar into Bottle X |
|
8.
|
Stopper Bottle X immediately with the wine bottle
nozzle |
|
9.
|
Slip a glass over the mouth of Bottle B when all
the water inside it has displaced |
|
10.
|
Remove Bottle B and stand it on the table |
|
11.
|
Remove glass cover and insert cork stopper with
temperature sensor 2 into Bottle B quickly |
|
|
|
| The bottle containing
air |
Fill the bottle with water and then pour it out so as
to ensure taht the inside of the bottle is as wet as that of the
bottle containing carbon dioxide.
|
|
|
|
|
| What we use for Big Test |
|
|
2 glass bottles (1.25 litres; 1 filled with carbon
dioxide, 1 filled with air) |
|
|
2 cork stoppers |
|
|
1 cardboard box lined with aluminium foil |
|
|
2 identifical blocks wrapped with aluminium foil |
|
|
1 retort stand, the base lined with aluminium
foil |
|
|
1 clear incandescent bulb (100W) |
|
|
blue tac |
|
|
scotch tape |
|
|
1 datalogger with 3 temperature sensors |
|
|
1 IBM Notebook Computer |
|
|
|
| |
| Carring out the Big Test |
|
Experiment using
alchol thermometers
|
|
Heat Source
|
Hot water
|
Bulb
|
Sunlight
|
|
Number of experiments
|
3
|
8
|
3
|
|
|
|
Experiment using
dataloggers
|
|
Heat Source
|
Hot water
|
Bulb
|
Sunlight
|
|
Number of experiments
|
*
|
6
|
4
|
|
|
* Hot water experiment is
combined with bulb experiment to simulate heat given out by buman
activities and sunlight.
|
| |
