2nd

Name: Geofrey Jinuin

Class: 3 Melati

Peka Science (2) Activity

: To observe the different type of unicellular microorganism

Apparatus

:Microscope, glass slide, cover slip, needle, dropper, filter paper, pond water, yeas solution.

Instructions. 1. 2. 3. 4. 5.

Using a dropper, place a drop of pond water on a glass slide and cover it with a cover slip. Examine the slide under the microscope using high power lens Identify and dray the microorganisms that can be seen. Mount a drop yeast solution on a glass slide and examine under the microscope with a high power lens. Draw the yeast cells observed.

Procedure. 1. 2.

Using a dropper, place a drop of pond water on a glass slide and cover it with a cover slip. The slide was Examine under the microscope using high power lens. 3. The micro organisms that can be seen has been identify and draw. 4. Mount a drop yeast solution on a glass slide and examine under the microscope with a high power lens. 5. The yeast cells observed and has been draw. Observations:

Discussion. 1.Give the meaning of the following terms. a) Microorganisms: An organisms which is to tiny to be seen by the naked eye b) Unicellular Organisms: Organisms that consist only one cell. 2.What can you deduce from your observations about the size and shape of the organisms found in the pond water? -It’s size is very small and have many shape 3.Name the organisms which appear green in colour. -Euglena 4.Classify the microorganisms into animal and plant cell. Animal cell Paramecium Amoeba

Plant cell Euglena Yeast

Conclusion:-Unicellular organisms are made up of one cell and they vary in Multi cellular organisms and micro organisms.