Describe an activity to show that acids produce ions only in aqueous solutions .

With the help of a labelled diagram describe an activity to demonstrate the law of conservation of mass.

With the help of a neat and labelled diagram, describe reflex arc.

With the help of a neat and labelled diagram, describe reflex arc.

Ethanoic acid reacts with sodium hydrogen carbonate to produce a salt 'X' and a gas 'Y'. Identify 'X' and 'Y' and write their chemical names. With the help of a labelled diagram describe an activity to confirm that the gas 'Y' is correctly identified by you. Also write the chemical equation of the reaction involved.

With a well labelled diagram , describe human excretory system.

With the help of a neat , labelled diagram , describe the human male reproductive system.

With the help of diagrams, describe emasculation and bagging.

With the help of a neat and labelled diagram, describe the human male reproductive system.

With the help of a diagram describe the structure of a flower.