Aim: To discover the effect of insulation by using a cavity wall
Plan
First we will set up the apparatus as shown in the following diagram. After that, we then will record the temperature of hot water in each beaker every thirty seconds for fifteen minutes. This will give us a better understanding of the readings & it will be easy to analyse.
Prediction
I predict that as the time flows, the temperature of both set of investigations will gradually decrease. But only one of the two, (most likely the cavity wall wrapped) will not decrease as much as the non-insulated one. This is because there will be a slower rate of cooling due to insulation, which would otherwise not be available. Insulation reduces heat loss and the rate of cooling.
Diagram
Safety
I will also take a number of safety precautions whilst conducting the investigation. I will ensure the kettle is used safely through out the experiment, and hot water is transferred securely. I will conduct the experiment using cardboard in place of corks, as this reduces the risk of the thermometers breaking. I will use protection when handling the boiling tubes when the hot water is present.
Plan
First we will set up the apparatus as shown in the following diagram. After that, we then will record the temperature of hot water in each beaker every thirty seconds for fifteen minutes. This will give us a better understanding of the readings & it will be easy to analyse.
Prediction
I predict that as the time flows, the temperature of both set of investigations will gradually decrease. But only one of the two, (most likely the cavity wall wrapped) will not decrease as much as the non-insulated one. This is because there will be a slower rate of cooling due to insulation, which would otherwise not be available. Insulation reduces heat loss and the rate of cooling.
Diagram
Safety
I will also take a number of safety precautions whilst conducting the investigation. I will ensure the kettle is used safely through out the experiment, and hot water is transferred securely. I will conduct the experiment using cardboard in place of corks, as this reduces the risk of the thermometers breaking. I will use protection when handling the boiling tubes when the hot water is present.