Volume is how much space an object, such as a cube, takes up. Volume is calculated by multiplying the length x width x height of an object. For example, if you have an object that has a length of 3 cm, a width of 5 cm, and a height of 6 cm, the volume of this figure would be 90 cm3. You would put the unit of measurement that is being used to the third power because volume measures how much space a three dimensional object takes up. Also, to find the volume of an object using the water displacement method, you simply record the water level of water in a graduated cylinder, drop the object in, look at where the water level is now, and subtract the two water levels. That is another way to measure volume.
According to the teacher check, I achieved expected results. I know that my results are valid because I measured all of the liquids twice instead of once to get the best results. I did not have to repeat this lab procedure. If the teacher wasn't here, I could check my results by looking at another lab group's work and compare them to mine. I could also compare their results with another lab group in order to get the best results. In order to verify my procedure, I could carefully look at the directions printed on the lab procedure paper, and carefully do what is needed to do. For example, when it says to transfer 16.0 ml of red water into test tube A, I could carefully look at the pipette, take out 16 ml, check the test tube that I am going to put it in to make sure that it is test tube A, and put it in. If following directions are done this carefully, there is no room for error.
I didn't have to repeat procedures at all. These directions were very clear, and I made almost no errors, apart from a few writing errors on the data table. Something I did differently to get acceptable results was to measure everything twice. For example, instead of measuring the 16.0 ml of red water, I carefully measured it into the pipette, poured it back into the tube, and took it again, to see if it was the same as 16.0 ml. Something that can be changed is that pipettes with easier measurements could be used. The pipettes were listed by milliliter, but they were listed backwards, and we had to really look to find the actual measurement. Apart from that, this lab went very smoothly, and I had a lot of fun doing it.
