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Monday 4 November 2019

Having a closer look at onion cells!

Scientific Experiments:

Aim :

Are we going to be able to see a clear picture of onion cells?

Hypothesis :
We’ll be able to see the cells by 10x

Equipment :
  • Slide
  • Cover slip
  • Tweezers
  • Blue dye
  • Microscope
  • Onion
Method :
First we received our equipment. We then used the tweezers to peel a thin layer of onion and placed it onto the slide. Next we used saline to flatten the onion layer. We then used blue dye so we were able to see the outlines of the cells. Lastly we placed the cover slip on top of the slide and placed our finished object on the microscope.

Observation :

Even at 10x we were able to see the basic shapes of the cell. We were also able to see the cells from 10x and 40x. When using 100x all we saw was purple.

Conclusion :
Onion cells are very interesting to study. Even with a low observation you are still able to see the cells.

Onion cells through a microscope! (10x)
Image result for onion cells 10x
Task Description :
Today Room 4 was given the task to have a closer look at onion cells. Most of you may know that I am in Room 3. But because Whaea Kelly wasn't here today, Room 3 got split into different class rooms. Anyways, Room 4 got told to get into groups of 4 and follow the following instructions. The information that was based on what we had to do is in the writing above. After completing the instructions we were given,  we then were given the task to blog about it.

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