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WorksheetsOur Environment: Mock Test
Total questions: 15
Worksheet time: 15mins
An object (a) when the amount of water displaced is equal to the weight of the object.
Planting trees increases the level of (a) gas in the air.
We get rain from the sea water through a natural process called (a) .
Salt is obtained from sea water through (a) of sea water into the air..
Saltwater is a mixture of solute and solvent, it is also called (a)
People in the Dead Sea sink because of the high amount of salt.
True
False
The viscosity of liquids decreases with an increase in temperature.
True
False
Honey has low viscosity when compared to water.
True
False
Ink in pen is a solute.
True
False
The process of converting liquid into vapour or gas is called solidification.
True
False
In sugar solution, sugar is _______ while water is ______.
Solute, Solution
Solution, Solvent
Solvent, Solute
Solute, Solvent
_________ is the measure of how thick or thin a liquid is.
Temperature
Solubility
Viscosity
Heat
_______ are the effects of air pollution.
Breathing problem
Acid rain
Smoke from cars
Smoke from factories
Which of the following is an example of a universal solvent?
Water
Kerosene
Petrol
Diesel
_________ around the earth protects us from harmful UV rays.
Troposphere
Stratosphere
Ionosphere
Ozone layer
