Today we reviewed our information for Unit 8 quiz. It is about the atmosphere. The first section begins talking about the atmosphere. The second section, which we will learn about after this quiz, just goes into more detail on the structure of the atmosphere. We reviewed the composition of the atmosphere. It is 78% Nitrogen, 21% Oxygen, 0.9% Argon, and 0.1% trace gasses (Neon, Hydrogen, Carbon Dioxide). We also reviewed the origin of the atmospheres. There have been three atmospheres. The first appeared after ancient volcanoes released gasses in a process called outgassing. This was blown away by a large meteorite. Then a new one formed similarly. This was changed by Cyanobacteria which added the present levels of Oxygen to our atmosphere.
Tuesday or April 5, 2016 C.E.:
Today we started a new lab. It is the Air Quality Lab. We will be measuring the air quality of different areas in the school. We taped a clear plastic sheet to an index card. We put a dab of petroleum jelly on each plastic sheet and hung them in different places. I hung mine up inside the dumpster because my original idea was already taken. When we take them back in, we will look at the amount of particles that are stuck to the jelly. We will then compare the different places together.
Wednesday or April 6, 2016 C.E.:
Today we took our Unit 8 Section 1 quiz. I think I did well on it. I don't think I got a 100, but I still think I did well. The test had some questions that are harder than normal. The problem is that one multiple choice question missed is four points. This is a lot so there is no room for error. This test was about the application. We could not just memorize the definitions and make it through this test, so I think it is a good test.
 |
| Layers of the Atmosphere |
Thursday or April 7, 2016 C.E.:
Today we didn't have school because of IOWA Assessments.
Friday or April 8, 2016 C.E.:
I scored a 96% on my test. This is not good or bad. I missed one multiple choice question, but that isn't really that bad. We reinforced our samples with duct tape so they wouldn't fall down. It didn't seem like there were many particles in the trash can. Maybe this is because there are no airborne particles or moving air, just heavy bags of trash.We also started the second section. It is about the structure of the atmosphere. We also talked about how the atmosphere is like an ocean of air, and that we live on the bottom of it.
Summary: This week was a good week. I did ok on my quiz, but I still could have done better. I made a careless error and thus I got a 96%. I have to stop making these errors next time.
No comments:
Post a Comment