I am going to investigate the rate of cooling in heated water. In my experiment I'm trying to find out if the rate of cooling and evaporation will change the temperature of the water.

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Introduction.

  I am going to investigate the rate of cooling in heated water. In my experiment I’m trying to find out if the rate of cooling and evaporation will change the temperature of the water.

My ideas are that I’ll have to see if convection, conduction or radiation will occur in my experiment and if it will affect the rate of cooling and how to avoid it. And see if the diameters of the beaker will increase/decrease the rate of cooling.

The things I am changing in my experiment are:

        The beakers top and bottom surface area by measuring the two different size beakers with vernier callipers.

        I would put insulations on both beakers, if necessarily, to see if the rate of cooling would be affected.

I would keep the investigation safe by wearing goggles because there would be the chance that the thermometers, in the beakers of 80°C of hot water, might explode.

The things I am going to keep the same in my experiment are:

        The amount of water.

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        The material of the beakers.

        The colour of the beakers

If I didn’t keep any of these the same it wouldn’t make a fair test because if the beakers’ size was different the rate of cooling would increase or decrease, if I had one big beaker and a small beaker with the same amount of water, the larger beaker’s water temperature would decrease drastically and the smaller one slower because of the different surface area (the big beakers surface area is a lot bigger than the small beaker.) so evaporation would have taken place in the big beaker a lot ...

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