Compare the legs and nails of a dog and hen and say why they are different.

Compare the ionisation potentials of He and He^(+) . Account for the differences.

Why cranes have legs and long beaks?

Observe the whole body of a hen from internet and make a list of different joints bones ,muscles ,tendons and ligaments present in it.

Compare the reproduction in Hydra and Amoeba. Note donw the differences in your note book.

Compare how a frog, cow and dog use their tongues.

Compare the(food taking) parts of dog to that of hen. Note down the similarities as well as differences observed by you.

Why seeds are in different shapes?

Write the parts of the body animals that are used to collect or capture food in table-2 compare the parts of a dog to that of a frog. Note down the similarities as well as differences observed for you

Draw to different rectangles having the same perimeter. Compare their areas Are they same? Can you draw two different square having the same perimeter.

Draw two different rectangles having the same perimeter. Compare their areas. Are they same? Can you draw two different squares having the same perimeter.