The following video shows how we did the expermient and what things we found out while doing it:
A video of our experiment
November 5, 2010
Photos of our experiment
November 3, 2010
The following picture shows all the equipemt we used for the experiment:
The follwoing pictures show the equipments seperate:
The following video talks about how thermal solar panels work and what they are used for:
Our experiment went quite well. We had enough time to finish the experiment and we could also start with our blog in school. Everything in the experiment went well but there were a few problems which we had. One of our straws was leaking, therefore the amount of the liquid was not correct. Another problem that we had during the experiment was that when we but the water inside the straw the liquid came out at the top because there was too much liquid. These problems were not very good because we could not get very accurate results. Overall our experiment went well and we had a great time finding out more about how solar panels work and what liquid is the best to use.
This is the data we have collected from our experiment:
Milk
Temperature of milk 1(Start): 22.9 C
Temperature of milk 2 (Start): 22.9 C
Temperature of milk 1(end): 23.5 C
Temperature of milk 2(end): 23.4 C
Milk 1: 0.6 Milk 2: 0.5 Average: 1.65
Coke
Temperature of coke 1(Start): 21.9 C
Temperature of coke 2 (Start): 21.9 C
Temperature of coke 1(end): 23.2 C
Temperature of coke 2(end): 24.9 C
Coke 1: 1.3 Coke 2: 3.0 Average: 2.15
Apple Juice
Temperature of milk 1(Start): 18.0 C
Temperature of milk 2 (Start): 18.0 C
Temperature of milk 1(end): 22.6 C
Temperature of milk 2(end): 24.8 C
Apple juice 1: 4.6 Apple juice 2: 6.8 Average: 5.45
Water
Temperature of water 1(Start): 20.0 C
Temperature of water 2 (Start): 20.0 C
Temperature of water 1(end): 23.3 C
Temperature of water 2(end): 22.7 C
Water 1: 3.3 Water 2: 2.7 Average: 2.85
Salt water
Temperature of salt water 1(Start): 20.1 C
Temperature of salt water 2 (Start): 20.1 C
Temperature of salt water 1(end): 22.8 C
Temperature of salt water 2(end): 21.8 C
Salt water 1: 1.7 Salt water 2: 2.7 Average: 2.2
Our experiment
Through a set up of a thermal solar panel we are trying to find out which liquid will heat up the most. We will do this by taking a Pringles box which is cut in half. Then we put a whole at the beginning and at the end of the box. After that we put a purple straw into the Pringles box, which we filled up with the different liquids we chose. We let a light shine on the set up for ten minutes. After that we recorded how much each of the liquids heated up.
Variables
There are a few different types of variables in our experiment. The standardized variables in the experiment are the colour of the Pringles box, distance to the lamp, colour of the straw, time we leave the liquid in the straw, distance from the straw to the tube and we will also keep the amount of liquid we put into the straw the same. Our independent variables are the things we will change during the experiment, these are the different types of liquids.
Thermal Solar Panel
October 27, 2010
You can see thermal solar panels on roofs of houses. The thermal solar panels are used to heat up water. Thermal solar panels are tubes which contain water, this water will be heated up so that it can be used for under floor heating, central heating, and hot water in general. When the sun light shines onto the thermal solar panels the water in the tubes gets heated up. A tap is connected to a tube which brings cold water into the tubes of the thermal solar panels. This water then gets heated up and is being used. This process is repeated again and again. When all people would use thermal solar panels to heat up their water then we would burn less fosil fuels, which would be much better for our environement.
The process of how a thermal solar panel works
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