1. How much water in volume can we fit on a 5c, 10c, 20c, 50c, $1,
and $2 piece?
- Hunches:
- - equal to the volume of the coin?
- - more or less and for what reasons?
The Great Coin Experiment
1. How much water in volume can we fit on a 5c, 10c, 20c, 50c, $1,
and $2 piece?
2. How could we measure it?
- - splash and waste,
- - wet and dry coins, etc.
- - use displacement method?
- - using a pipette, eye dropper
3. List and discuss the variables in this experiment.
- e.g., temperature affects water volume, size of coin, ...
- grease on coins, need new coins?
- damaged coins
- decorated surfaces v plain surfaces (surface areas affected)
- effect and size of perimeter ridge
- effect of surface tension
4. Draw up a table illustrating your findings.
Calculate a ratio between volume and area.
|
Coin |
5c |
10c |
20c |
50c |
$1 |
$2 |
|
Area |
||||||
|
Volume it holds |
G. Smith 1999 based on G. Gambo The great coin experiment - Lesson teaches scientific method Our Gifted Children 4.4. (January 1998) pp. 14-15 Melbourne: Hawker Brownlow.
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