Points to Remember
* Soaps are
prepared by heating the mixture of olive oil, animal fat and concentrated
sodium hydroxide solutions.
facilitates growth of plants.
* Vermi compost has
high nutrient benefits and it is useful for sustaining the land fertility.
* Cement is
manufactured by using lime, clay and gypsum.
* Plaster of Paris
is used to fix bone fractures.
* Diluted phenol is
used as a cleaner, disinfectant and mouthwash.
* Adhesives are
substances that are used to join two or more components together.
Through this activity you will be
able to learn about the 4Rs of crop nutrients and their importance.
Step 1: Type the following URL in the browser. 'NUTRIENTS FOR LIFE' activity
page will open.
Step 2: Click the ' X ' icon on the top left of the activity window to close
the welcome note and start the activity or click on 'Next' on the bottom to
read the instructions.
Step 3: A corn field , 4 cubes and 4 dials are shown, Using the mouse grab the
cubes at the bottom which are labelled WATER , N, P, K and drop them over the
Step 4: Each
time you apply water or nutrients on the crop it will rise the dial. Keep
all the dials in the green. Repeat the same process till the crop is fully
Nutrients for life URL:
*Pictures are indicative only