Categorise the following organisms into two groups, according to size - Amoeba, Paramecium, Euglena, snail, elephant, pigeon, worms.
Important Questions on Cell Structure and Micro-Organisms
Take two earthen pots half filled with soil and mark them 'A' and 'B'. Mix some waste material like garden waste, dung, fruit peel, vegetable stalks, paper scrap, etc. with the soil in pot 'A'. Mix things like pieces of glass, scrap metal, plastic bags, etc. with the soil in pot 'B'. Keep both pots at the same spot in the garden and observe them after 3 to 4 weeks.
Did the garbage in pot 'B' remain unchanged? Can you tell?
Take two earthen pots half filled with soil and mark them 'A' and 'B'. Mix some waste material like garden waste, dung, fruit peel, vegetable stalks, paper scrap, etc. with the soil in pot 'A'. Mix things like pieces of glass, scrap metal, plastic bags, etc. with the soil in pot 'B'. Keep both pots at the same spot in the garden and observe them after 3 to 4 weeks.
Where did the garbage in pot 'A' disappear? Why?
Why should dry and wet wastes be collected separately?
Why is yoghurt mixed to the batter or dough for making rava-idli, bhature, naan?
How do preparations like yoghurt, idli, dosa become easy to digest?
What does your mother do to make yoghurt from milk?
