Take a boiling tube. Put two spoons of soil in it. Heat it on a spirit lamp and cover it.
Do you find any moisture in the soil?

Take a boiling tube. Put two spoons of soil in it. Heat it on a spirit lamp and cover it. Do this experiment and write your findings.

How do you find the moisture of soil?

when red litmus paper put on soap .What do you observe ? Do you find any change in colour?

How do you find the soil micro organisms?

Latha take some quantity of powder of a substance in a test tube. Heated it with spirit lamp. A gas was liberated. She sends the gas into another test tube. The colour of solution in the second test tube turned into milk white. Which substance was heated? Which gas is liberated? What was the solution taken in second test tube? Which type of chemical reactions involved the experiment?

Take a glass jar and fill with soil. Show a bean seed near the wall of the jar. After 4 - 5 days you will notice seed germination. Keep the jar under the sun. Observe how root and shoot grows. Then tilt the glass jar and keep the plant horizontally. Observe the direction of the root and shoot growth for more than a week iii) Do you find any differences in the shape of epidermal cells?

What happens when you heat an iron rod on a flame? Do you find any change in colour on heating an iron rod?