Chemical Effects of Electric Current — Science STD 8 — Question

Name any two parts which are present in a plant cell but not in an animal cell.

Name the characteristic of sound which can distinguish between the 'notes' (musical sounds) played on a flute and a sitar (both the notes having the same pitch and loudness).

Do we see all objects due to reflected light?

Name two metals which are used for making electric wires.

Name one cell which can be seen easily with naked eye and one cell which can be seen only through a microscape.

You spill a bucket of soapy water on a marble floor accidently. Would it make easier or more difficult for you to walk on the floor? Why?

State one advantages of growing a leguminous crop between two cereals crops.

What is the name of the process by which young ones are formed ?

To which kind of synthetic fibres does terylene belong?

What name is given to the force acting on a unit area of an object?