Question 19
Place a smaller clay pot inside a larger clay pot. Fill the space between the pots with sand. Pour water into the sand until it is moist. Place a thermometer inside the smaller pot. Cover the whole set-up with a damp cloth.

Record the temperature inside the smaller pot every 20 minutes for an hour.
|Time in min|Temperature in °C|
|---|---|
|0|___|
|20|___|
|40|___|
|60|___|

Record the temperature inside the smaller pot every 20 minutes for an hour.
|Time in min|Temperature in °C|
|---|---|
|0|___|
|20|___|
|40|___|
|60|___|
