activity

Take a test tube containing distilled water. Bubble sulphur dioxide gas through it for a few minutes. Take a blue litmus paper and dip it into the distilled water of the test tube. The blue litmus paper turns red indicating that the water, which was initially neutral, has become acidic in nature. ..

Complete the following table by measuring the interior and exterior angles of the figure given above using a protractor. Study the table carefully and identify the relation between exterior and interior opposite angle..

Remove air from a can by putting a little water into the can and boiling the water in it. The steam forces the air out. Close the opening and keep it below a tap, we find the can crumbling as the pressure inside the can is very small when compared to the pressure outside. ..

Visit an agricultural institute where hybridization is done and study how: Plants are grown in artificial conditions Artificial cross-pollination is done Tissue culture is don..

Make solutions of the following substances: 'Borax', 'Blood', 'Milk', 'caustic soda', 'Lemon Juice', 'Bleaching powder', 'Tomatoes', 'Vinegar', 'detergent', 'Pure Water', 'Coffee', Baking Soda'. Put a drop of each of the above solutions on a watch-glass and test by adding a drop of litmus to i..

Show how nitrogen shares a covalent bond with hydrogen in the formation of ammonia (NH 3 ). Are all electrons involved in the bonding? Give the Lewis structure of the covalent bond als..

Photosynthesis - Some Activities - Following are some simple activities and experiments related to photosynthes..

Photosynthesis - Some Activities - Following are some simple activities and experiments related to photosynthesi..

Active Absorption - Movement of ions from the outer space of the cell to the inner space is generally against the concentration gradient and hence requires energy. This energy is obtained through metabolism either directly or indirectly. Various evidences indicate the active upt..

Immunity is said to be active when an organisms own cells produce antibodies. It develops as a result of contact with pathogenic organisms or their products. It may be acquired naturally or artificially. Active immunity is produced naturally by the attack of the disease like sma..