What do you mean by sublimation? Explain with suitable examples. Write the properties of these substances.
(water, glass, chalk, iron ball, sugar, salt)
Name of the material
Appearance (Hard/soft)
Transparency
(Transparent/Translucent/
Opaque)
Floats/ Sinks in water
Soluble/ Insoluble in water
Which of the following substances are elements ?
Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine