Tread Under a Microscope

Today we started off class reviewing homework. Then we looked under a microscope. The image under the microscope was on the smart board. There were three pieces of thread that intersected each other. We turned the microscope onto the higher objective, it was hard to see so tried to focus the image and we learned that if we focused in too much the matter got onto the lens. After we focused it, we could see little cords that make up the thread. This lesson was to show that the microscopes can be used to see deeper(inside, what makes up) of the thing you are looking at. We kind of see through the blue thread and see the yellow thread under it. Afterward, the experts explained what they were doing the other day. They got a piece of letter on a slide. They had to use the objective lenses to find the letter and use to course focus and the fine focus to adjust the microscope. The fine focus makes the image sharper or duller. When they zoomed in, you could only see part of the image. It was blurry when you zoomed in too much and the fine focus couldn't help that much. The higher objectives were too strong and it made the image harder to see. I think that this lesson is meaningful because we would probably need it for when we use the microscopes on our own. When we start to look at cells under a microscope we would need to know how to use the microscope. This lesson is very meaningful.

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