Charitha plans to investigate, what makes the size and shape of a rock change. What process skills she need to do her job?

Aravind plan to investigate how the light switch works? What process skills he need to conduct his experiment?

Saketh wants to make collections of shells. What process skills he need to conduct hin project?

The substance 'X' normally exist in a physical state which ca flow easily but does not fill its vessel completely. It also turns dry copper sulphate to blue. When substance'X. is cooled excessively, It changes into a substance'y' which has a fixed shape and fixed volume. If, the substance 'x' is heated strongly., it changes into substance'z' which has neither a fixed shape not a fixed volume. What is the process of conversion of 'x' into 'z' known as?

Likitha made an experiment that CO_2 is liberated during respiration. But the lime water in it do not changed to milky white what is the error made by her?

Ganga went to a tailor with 1 mt. cloth. She asked him to make a blouse to her. The tailor used 0.75mts of cloth to make the blouse and returned the remaining cloth to Ganga. What percentage of the cloth is used in making the blouse?

Ganga went to a tailor with 1 mt. cloth. She asked him to make a blouse to her. The tailor used 0.75mts of cloth to make the blouse and returned the remaining cloth to Ganga. What percentage of the cloth is given back to Ganga?

What changes do we need to make in an AC generator to be converted into a DC generator?

Kshitija saw a medical camp on her way home. She went near the doctor and asked the purpose of the camp. The doctor told her that, he is cutting some part of the sperm ducts of males by operations and lying again with string. What is the purpose of doing so?

If the key is to be coated with aluminium instead of copper, what changes do we need to make in the experiment of coating on iron key with copper?

What do you mean by vapour pressure of a liquid ? Describe the vapourization and condensation processes in a closed vessel. How does the vapour pressure change with temperature ?