Collect the information regarding wavelengths and corresponding frequencies of three primary colours red, blue and green.

Collect information regarding joint pains from an orthopedic.

Collect information regarding our traditional food from your grandparents

The range of wavelengths converging red colour to violet colour is called the _______

Collect information regarding metallic character of elements of IA group and propare report to support the idea of metallic character increases in a group as we move from top to bottom .

Collect information from your parents regarding various methods used by us to clean food grains at home and prepare a chart to show them.

Four students were given colourless liquids A,B,C of water, lemon juice and a mixture of water and lemon juice respectively. After testing these liquids with pH paper, following sequences in colour change of pH paper were reported. Blue, Red and Green Orange, Green and Green Green, Red and Red Red, Red and Green