All of you were very excited when you view your cheek cells and the onion cells under a microscope. However, when it comes to drawing the cells, it was tough, wasn’t it. What you saw under the microscope was clusters of cheek cells and some were folded or overlapped with another cell. Which one to draw? The onion cells were neater but there were rows and rows of them!

Below are pictures of the cheek cells, onion cells and the elodea cells. Do they look like what you saw?

Cheek cells

Onion cells

Elodea cells

Compare the onion cells and the elodea cells. How are they the same? How are they different? Give your answers in the comment. (Remember to write your name and class in brackets as your nickname)

5 Love,

About the question which one of you asked, the site below tells you what it is, its signs and how to prevent it. I apologies for giving the wrong information the other day. Please go to the site for more accurate information about this disease.

Rabies Just for Kids

We cannot see most of the cells with our eyes. We need to magnify them under a special instrument called the microscope. A microscope is a very delicate instrument. You must handle it with care.

Before you handle a real microscope, click on the link below to watch a video on how to operate one. Pay attention to the steps mentioned in the video. (Your PC needs to be installed with Flash Player to view it.)

Introduction to Microscope

Now that you have an idea of how to operate a microscope, you may view some slides with a virtual microscope. You may want to go through a navigation guide by clicking ‘Start tour’ first.

Then view the following slides under the virtual scope:
a) letter “e” - draw what you see in the virtual scope in your Activity Book Pg
b) cheek smear
c) onion root tip
Compare the difference between the cells in (b) and (c).

Virtual Microscope (Click on ‘The virtual scope’ after this)

You can’t even see most cells, so what’s the big deal? What are they anyway? Why are they so important? What do they look like? How do they work? In addition to finding cell information in your Science Book (chapter 2) and the other books you will read, visit the following sites to find out more about Cells.

Have fun and ‘cell’ebrate your discoveries!

Cells are the Starting Point

Animal & Plant Cells:
Different parts of a cell have their specific role and function. Each part performs their role faithfully to ensure the functionality and survival of the whole animal or plant.
Visit the following sites to learn more about the parts and their functions. Pay special attention to ‘cell membrane’, ‘cell wall’, ‘cytoplasm’, ‘nucleus’ and ‘chloroplast’.

1. Parts & their Functions

2. Summary