5/6/08

Today we went outside again. We went down as soon as we got into the classroom.
The firs thin that we did when we got down there was look for more crayfish. The water felt to be the same temperature as the previous day. we looked for a good bit of the class period for crayfish, but only found one. he was pretty small too, only about 1.5 inches long. I can't catch crayfish that good, so I did not catch him.
The next thing that my group and I did was check the temperature of the water and air. We think that the temperature of the Air will be much warmer than the temperature of the water due to the fact it takes more heat to heat up water. So we got out our GLX and placed one censor in the air and one in the water. The one in the water read 15.7 degrees Celsius. The temperature of the air was 21.5 degrees Celsius. This proved our theory correct.
I thought that our group needed to start some tests so that we can see the different levels of different minerals and such in our plot. So I told Dan to go get a field test out of the Backpack. He brought back a CaCo3 test. The tester told us to place water in a beaker and add one type of chemical in and then another until the water turned purple and then blue. The syringe read .3. The directions told us to take that number and multiply that times 300. So that means there is 90 Units of CaCO3 in our water. I wonder if other groups will find the water to have the same amount of CaCO3 in their environment.
The next thing that we found in our environment were minnows. These minnows might just be small chubbies, but I think they are minnows. I took the big beaker out of the testing kit and tried to catch a couple of them. they are smarter then what they seem. I could not catch one and am going to make it my goal to catch one just to put it in Dan's face.