Tell me everything you have learned so far about the microscope. What fascinates you? What skills have you learned? What has been new information to you? How has the microscope inspired you?
Something that fascinates me is that microscopes are used with light. We have learned that microscopes have three objectives and can enlarge a slide up to 400x. We have learned the history of the microscopes. We have learned how to use a microscope and how to function it properly. For example, that we shouldn't use the high objective until we have done the low and medium objectives first. Some new information to me is that microscopes have been used ever since 1660. The microscope has inspired me to become curious about muscles and cells and more. They have inspired me to love and be interested in biology. I am in your 5th period class.
Reply
Suzette Barajas
10/22/2012 10:40:24 am
For the past few weeks I have learned alot about microscopes. First of all I learned that Anton Van Leeuwenhoek from Holland was the first person to invent a microscope. The first microscope he invented was a Simple Microscope (a single objective/lense). Anton Van Leeuwenhoek discovered bacteria by scraping his teeth but during that time he called it "webeesties". He also discovered sperm, and pond water. Also the person to discover cells was Robert Hooke from England.
I did not only learn the history about microscopes but the parts of microscopes. First there is an eyepiece where you look through it and examine the specimen. The specimen is the sample that you examine through the microscope. Also there is a Fine adjusment knob that would sharpen the image that would make it clear. Also there is a Coarse adjusment knob that will move the stage up and down to get the specimen into view. The arm and base must both be supported to be carried. The stage is where you place the specimen and the stage clips are clips that will hold the specimen so it wouldn't fall of the stage.
I also learned about the procedures.
1) Make sure the microscope is on and so is the lamp. Make sure dust cover is folded NEATLY and it is in the low power objective.Also make sure that the specimen is in place on the stage with the stage clips on.
2) Move the stage up and down so the specimen is in view using the coarse adjusment knob
3) Sharpen the image by using the fine adjusment knob.
4) Switch to medium power.
5) Make sure the specimen is in view by using the coarse adjusment knob
6) Sharpen the image by using the fine adjusment knob
7)Switch to high power.
8) Make sure the specimen is in view by using the coarse adjusment knob and your lab partner must warn you if the specimen is getting DANGEROUSLY close to the objective. Focus or sharpen the image by using the fina adjusment knob.
Reply
Agustina Mc Ewen
10/22/2012 10:45:06 am
Agustina, 2nd Period
Below I listed some of the things I learned about microscopes so far:
Microscope means small vision. A specimen is a small sample to be studied, an example, a slide .The arm is located on the side of the microscope, used to support it when being carried. The base is the bottom part of the microscope, must be supported with hand while being carried. A stage is a flat surface where slides or specimens are placed.The stage clips holds slides in place on the stage so they do not move out of focus.The disc diaphragm adjusts the amount of light that shines through the specimen.The lamp projects light upwards through the diaphragm. The coarse adjustment knob moves the stage up and down to help get the specimen into view (only used with the low powered objective).The fine adjustment knob moves the stage slightly to help sharpen or fine tune the view of the specimen (used with the medium and high powered objectives) .The eyepiece allows you to view the slide on the stage and contains the ocular lens (has a magnification of 10x normal size).The revolving nosepiece holds the objective lenses and is able to rotate to change the magnification. The objectives are found on the nosepiece and range from low power (red = 4x), medium power (yellow = 10x), to high power (blue = 40x).Magnification is the process of enlarging the appearance of something to observe small details .In total magnification you multiply the magnification of the eyepiece x objective = total magnification . A slide is a rectangular glass plate that holds a specimen, can be bought already prepared, or created, when holding a slide, only touch the edges or the label. A coverslips a small, square piece of glass used to protect and cover the specimen on a slide. The inclined head allows you to rotate the eyepiece without moving the microscope. The dust cover covers and protects the microscope from dust to keep the lenses and glassy areas clean.
Working with a microscope is very interesting. It definitely inspired me to keep on using it. It’s really fun to see all of these things that are in our daily life but we just can’t see. I learned who invented them and some of his history.
Reply
Julian Silva (2nd Period)
10/22/2012 11:47:27 am
Some things that fascinate me are the cool details that you can't see in slides without using a microscope.Another thing that fascinates me is that a microscope has various magnifications.One last thing that fascinates me is that there are many different microscopes that do many different things.A skill I have learned is how to get a microscope to the high powered objective.Another skill I have learned is how to classify the different parts of the microscope.The third skill I have learned was the steps to use a microscope.Some new information that I got were the "fathers of microscopy" were Anton van Leeuwenhoek and Robert Hooke.Some more information that I got was that the eyepiece has a magnification of 10x.The microscopes have inspired me to believe that not all living things are visible with the regular vision.
Reply
Alexis Cano
10/22/2012 12:16:59 pm
Alexis Cano, 2nd Period
What I have learned about microscopes is that there are two different types of microscopes: simple microscopes and compound microscopes.
The first simple microscope was made by a guy named Anton van Leeuwenhoek. The simple microscope is made just with one single lens. He was the first scientist to discovered sperm, bacteria from teeth scrapings, and unicellular (single celled) organisms in pond water. He was an excellent scientific drawer that he even helped to teach others.
Robert Hooke built early compound microscopes about around a hundred years after Anton van Leeuwenhoek. Compound microscopes were made with two or more lenses. He was the first scientist to discover and name cells. He named the cells that way because he lived next to cells which are small rooms that are very simple and he said it looked similar to the cells he saw. He also looked at cork from the bark of an oak tree under the microscope and saw "cells".
Reply
izzy schear
10/22/2012 12:21:59 pm
I have learned alot about microscopes.
what i have learned is that there is a very special guy named: Anton van leeuwenhoek and what he made. How did the microscope inspire me well it shows very intresting things that we cant see with the naked eye. i can name all the parts of the microscope! here they are:
scope
arm
base
stage
stage clips
disc diaphragm
lamp
coarse adjustment knob
fine adjustment knob
eye piece
revolving nosepiece
objective
slide inclined head that is the parts of the microscope.
what has been new information to me well we didnt learn this last year so baciclly everything is new info to me but I enjoy new teachings. that is what i have learned about microscopes and their functions
SCIENCE RULES AND IT CAN SAVE OUR LIVES!
what i learned about in class about microscopes are
1) Raise the stage up using the coarse adjustment knob too get the specimen into view on the low power
2) Use the fine adjustment knob to sharpen the image.
3) Switch to medium power
4) Use the fine adjustment to sharpen the image.
5) Switch to high power
6) Open the disc diaphragm to let in more light and use the fine adjustment knob to sharpen the image.
I also learned new information about who invented microscope and who discovered other things. Anton Van Leeuwenhoek is from Holland and he invented simple mircoscope.
Robert Hooke is from England and is the 2nd scientist who discovered compound microscopes and "cells"
The microscope inspired by looking at different stage clips and learning about the parts of the microscopes.
Thanks to Ms.Solis, we wouldn't had done this without you.
Reply
areli aguilar
10/22/2012 12:57:09 pm
I have learned the steps to focus the microscope correctly, how to create a scientific drawing and learning how to focus on high power. What fascinates in biology is that we get to see specimens, we get to use microscopes, and we get to draw. Whats new to me is using microscopes and learning about cells (blocks of life) .
Reply
mayte washington(1st period
10/22/2012 01:58:27 pm
I have learned a lot of new things about microscopes.I learned parts of the microscopes like the:
arm
base
stage
stage clips
disc diaphragm
lamp
coarse adjustment knob
fine adjustment knob
objectives
revolving nose piece
eyepiece
inclined head
Before we started learning and using microscopes, I didn't know there were different objectives. I thought that all you had to do was put something on a stage and look through an eyepiece. Now I know that there is a certain way you focus a microscope. Of course,first you have to plug in the microscope. Then you roll the stage all the way down using the coarse adjustment knob. You should make sure that the microscope is on the low powered objective(red). Then you place the slide,or specimen, on the stage,secure it in place with the stage clips and turn on the lamp. While you look through the eyepiece raise the stage up using the coarse adjustment knob until the sample is in view.While looking through the eyepiece use the fine adjustment knob to sharpen the image. To focus a microscope on high power, you keep going and switch the objective to medium power(yellow). You look through the eyepiece and use the fine adjustment knob to focus. After that, you switch to high power(blue). The last thing you do is use the fine adjustment knob to focus while looking through the eyepiece. If you are working with a partner, he or she should warn you if the objective is getting dangerously close to the slide. I've also learned things like how tho carry a microscope. You need to have one hand on the arm and another on the base. You should never touch the glassy areas of a microscope because you can leave behind fingerprints. I have also learned about the "Founding Fathers of Microscopy," Anton van Leeuwenhoek and Robert Hooke. Anton van Leeuwenhoek made a simple microscope, a microscope with only one lens. He was the first scientist to discover bacteria from teeth scrapings. He also discovered sperm and unicellular, or single celled organisms, in pond water. His really good drawings helped to teach other people. Robert Hooke built early compound microscopes, which are microscopes with two or more lenses, in the 1660's. He looked at cork from the bark of an oak tree under the microscope and saw cells. He was the first scientist to discover and name cells.
Working with microscopes has been really fun and I can't wait to make slides!
Reply
Nancy
10/22/2012 03:01:13 pm
My name is Nancy Hernandez and I am in your 3rd period class.
I have learned what the parts of the microscpe are:
1)Eyepiece
2)Inclined Head
3)Revolving Nosepiece
4)Objectives
5)Arm
6)Stage
7)Stage Clips
8)Disc Diaphragm
9)Lamp
10)Coarse Adjustment Knob
11)Fine Adjustment Knob
12)Base
I have also learned about "Anton van Leeuwenhoek" and that he was born in Holland.
"Anton van Leeuwenhoek:"
*Made "simple microscpes"(single lens)
*First scientist to discover bacteria from teeth scrapings.
*Discovered sperm
*Discovered "unicellular"( single celled) organisms in pond water
*Excellent scientific drawings helped to teach others
"Robert Hooke"- England
*Built early "compound microscopes"
(2 or more lenses)- 1660
*Looked at cork from the bark of an oak tree under the micrscopes and saw "cells"
*First scientist to discover and name cells
Finally, I learned how to use and focus the microscope correctly.
1)Carry the microscope with one hand on the arm and one hand on the base.
2)Unwrap the power cord and plug in the micrscope, remove and fold the dust cover.
3)Roll the stage all the way down using the coarse adjustment knob.
4)make sure the low powered objective is in place over the stage(red, shortest objective).
5)place the slide on the stage and carefully secure it in place with the stage clips and turn on the lamp.
6)While looking through the eyepiece, raise the stage up towards the objective lens using the coarse adjustment knob until the sample is in view.
7)Use the fine adjustment knob to sharpen the image while looking through the eyepiece.
8)Switch the objective to medium power (yellow).
9)Use the fine adjustment knob to focus specimen at medium power while looking through the eyepiece.
10)Switch to the high powered objective (blue).
11)Use the fine adjustment knob to focus at high power while looking through the eyepiece (your lab partner must warn you if the objective is getting dangerously close to the slide).
This is everything that I have learned about the microscopes and I hoped you liked it!
Thank You for Reading!
Reply
Alana
10/23/2012 01:21:37 pm
I learned a lot about how to us them, like focusing it, holding it etc....
It was really fun drawing them and looking at the specimens through the microscopes in your class. Also how to hold them, and carry them correctly.
The advancement of light microscopy also required methods for preserving plant and animal tissues and making their cellular details more visible, methods collectively called histotechnique.
In brief, classical histotechnique involves preserving a specimen in a fixative, such as formalin, to prevent decay; embedding it in a block of paraffin and slicing it very thinly with an instrument called a microtome; removing the paraffin with a solvent; and then staining the tissue, usually with two or more dyes.
The slices of tissue, called histological sections, are typically thinner than a single cell. The colors of a prepared tissue are not natural colors, but they make the tissue's structural details more visible.
To know more about microscopes you can visit http://www.chosen.co.th/
Reply
Hony grace cabido
2/7/2021 11:55:40 pm
Wla
Reply
Leave a Reply.
Author
Ms. Solis 7th Grade Biology REALM Charter School Berkeley, CA