Make a list of green algae with their characteristic shape of chloroplast.

List general characteristics of viruses.

Green algae are…….

List the characteristic physical properties of the gases.

What characteristics make a community stable?

What is the shape of chloroplasts in higher plants?

Apart from chlorophyll, algae have several other pigments in their chloroplast. What pigments are found in blue-green, red and brown algae that are responsible for their characteristic colours?

Make a list of algae and fungi that have commerical value as source of food, chemicals, medicines and fodder.

Find out and make a list of proteins used as therapeutic agents. Find other application of proteins (e.g. Cosmetics etc.)

Take a bucket of water . Drop given articles in it . Make separate lists of the article which sink in the water and those that float on it : ( eraser , sharpner , pencil , spoon , compass , scale , rubber band )