The burning match is inverted

The match is held pointing upwards

The match is shaken

A large object is dropped into a glass

A match is lighter than water

A coin is heavier than water

A plant is kept away from the light

A plant is exposed to the sun light

Photographic paper is exposed to the sun light

Blue litmus paper is placed in acid

Red litmus paper is placed in alkali

Iron is exposed to air and water

Wood is burned

A solution od salt and water is evaporated