1. Complete Activity 2.1 (Page 17). Collect some moist soil from the field in a beaker and add water to it. After the soil particles have settled down, observe a drop of water from the beaker under a microscope. What do you see ?
Answer: The above activity can be carried out as follows:
Aim: To observe the drop of water under the microscope and make the necessary conclusions.
Materials Required: Moist soil, beaker, water, microscope.
Procedure:
(i) Add some of the moist soil from the field to the beaker and add some water to it.
(ii) Wait for the soil particles to settle down, take a drop of water from the beaker and observe it under a microscope.
Observations:
You will observe rod-shaped bacteria.
Conclusions:
We conclude that microorganisms such as rod-shaped bacteria called bacilli are widely present in soil.
“Collect some moist soil from the field in a beaker and add water to it. After the soil particles have settled down, observe a drop of water from the beaker under a microscope. What do you see ?” – Solved.
Related Links:
Solution to Extended Learning Problem 1
Solution to Extended Learning Problem 2
Solution to Extended Learning Problem 3
Solution to Extended Learning Problem 4
Solution to Activity 2.2
Solution to Activity 2.3
Solution to Activity 2.4
Solution to Activity 2.5
Solutions to Chapter 2 Microorganisms: Friend and Foe
