Thursday, March 8, 2007


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Analyze of Data

We made a data table for all the items we use in our experiment and the amount of heat these items conducted. The data table shows how much water we use and we used 200 ML. of water for one cup, and 200 ML. for the other cup we used. The temperature of the boiling water was at 125 degrees Fahrenheit and that is what we put the items into, so it can heat up. The temperature of the room water was 90 degrees Fahrenheit and that water was in one cup. The fifth column shows how much the room temperature water went up by putting the item that was just put in right after it was heated up from the boiling hot water. The last column shows the difference between how much the room temperature water started at and how much it heated up by the item.

The items we use were different types of metals. We use a iron nail, penny, quarter, paper clip, screwdriver,nickel, and scissors. The item that brought the room temperature up the most was the screwdriver, which rose the room water temperature up by 2 degrees Fahrenheit. The scissors brought the water up by 1.9 degrees Fahrenheit. The key that we used for this experiment made the room temperature raise up by 1.2 degrees Fahrenheit . The iron nail, and the penny made the room temperature water raise up by .5 degrees Fahrenheit. The quarter had raise the water up by the least amount and it was only .4 degrees Fahrenheit. The reason why we think the screwdriver brought the water up the most because it was the biggest item we used out of all of the items. The reason why we think the quarter conducted the less heat was because it is made of some type of metal that doesn't conduct a lot of heat energy as much as other metals. The reason why we think that the smaller items didn't conduct a lot of heat is because of the size and it might be because of the type of metals thats it may have inside of it.
Christian Castro, Joey Figueroa, Chris Estrella 802

Thermal Conductivity


Thermal Conductivity is the intense property of a material that indicates the ability to conduct heat. This is by particles striking each other and speeding up allowing heat to spread through the material. A material that is able to do this process is called a thermal conductor this is what we are testing in our project. If our household items that you can see even on your way to school are thermal conductors. Heat flows easily through materials that have high conductivity meaning that if our household items have high conductivity we will be seeing thermal conductivity in our objects. That is the goal and the reason we are carrying out this experiment.
Not every material can conduct heat, materials that resist the flow of heat are called poor conductors. These consist of plastic, wood, cork, fiberglass, and air. Sometimes when materials get hotter they increase in size this is called expansion this happens when solids, liquids, and gases are heated. The particles speed up and move apart, causing an increase in size. But when most solid, liquids, and gases lose heat there particles slow down and move closer together. This causes them to contract in size making them smaller. But just using our 5 senses is not the way we are going to see how much a materials heated. So what were using is a thermometer which is a commonly used instrument that is used to measure temperature. We are using Degree Fahrenheit (F) to measure the temperature of these items.


The way that we are going to test if our items have thermal conductivity is by boiling water at 120 degrees and pouring that water into a cup. Then filling another of the same cup with room temperature water. Then sticking a thermometer in each cup.Then we will stick our items into the hot water for 20 seconds then with tongs take the item out and insert them into our other cup of water. While we are doing this we will write down data like how much the temperature the water went up and note that down. Here are some pictures:

Monday, March 5, 2007






Here are pics of the experiment: ^











Over the weekend my partners and me met up at my house on friday and we decided to reconduct our experiment. The experiment was to heat up water in a pot at 125 degrees and after aobut a minute poured that water in a cup. Then in another cup the same exact size and material we filled with room temperature water. which was at 90 degrees.Then one by one we started putting our house hold metals in the 125 degrees water for about 30 seconds and with tongs moved the item into the other cup of water and we noted the amount of degrees the water temperature had rised. Here is our data to the left.

Thursday, February 8, 2007

Welcome to the Thermal Conductivity blog.
By:Christian, Christopher, Joey.
www.freewebs.com/miniphantom3rd