Write an activity to show that microorganism are present in soil,water and human being.
Answers
Answer:
when you take a microscope and see through it you will see microorganism around yourself
Explanation:
Aim
To show the presence of microorganisms in moist soil.
Materials Required
Garden soil, water, glass rod, filter paper, slide, beaker and microscope.
Theory
Organisms that are visible only through a microscope are called microorganisms. They vary in shape, size and characteristics that either makes them helpful or harmful to human beings.
Procedure
(i) Take some garden soil in a beaker and add a little water to it. Mix it well with glass rod.
(ii) Filter the solution with the help of a filter paper.
(iii) Collect a drop of the filterate on a glass slide and then observe it under a microscope.
Observations
Small organisms can be observed floating in the drop of soil sample. Conclusion Moist soil contains microorganisms.
Precaution
(i) While handling soil samples you must wear gloves.
(ii) Wash your hands properly after the experiment.