Today we are going to be discussing today’s topic around microscopes. This blog will be a short one as I need to update it, because today we are only creating our blog post and using our microscopes. As we are using microscopes, we are to be given an onion to see what it looks like underneath the scope.
Research (Video)
The parts of a microscope:
Method
Equipment:
- Onion
- Tweezers
- Cover slip
- Glass slide
- Iodine Solution
Instruction:
- Get your equipment ready.
- Get your tweezers and gently peel off the thin layer of onion skin cells.
- Place the onion cell in the middle of the glass slide.
- Place one small drop of Iodine solution in the middle of the onion cell.
- Gently place down a cover slip on top of the onion cells.
- Put the slide on the stage of the microscope gently.
- Use the smallest lens and focus the image, use the next biggest lens and focus the image, and then use the biggest one lastly.
Results:
Discussion:
How do you onions make you cry?
When an onion is cut, a substance called ‘lachrymator’ is released in the air, causing the nerves around your eyes to become watery and irritated.
How are microscopes able to zoom in so much?
There is a lens that sits closer to the object and a lens that sits much closer to your eyes. Both contribute to magnification of the object.
How does it magnify?
When an object is being viewed underneath a microscope, the light bends towards your eye and makes the object appear larger.
How are you able to see smaller things underneath a microscope?
The object you put underneath your microscope is magnified through one of the lenses. That causes the light to bend right at your eye and makes the object appear larger than its normal size.
How does the lens bend the light?
Using a convex lens, which is used to refract the lights direction directly to your eyes, causing the object to appear larger.
What is a microscope?
A microscope is an instrument that is used to observe smaller objects or cells.
Conclusion:
This project was one of my favorites, though the discussion part was difficult to come up with.