SLG Quiz 1

What is the mixture of several gases that forms the air around us?

• Solution

• Soil

• Atmosphere

• Plasma

Which gas is the most abundant (most present) in the air?

• Oxygen

• Carbon dioxide

• Nitrogen

• Water vapour

What is the process called when a solid dissolves completely in a liquid to form a clear mixture?

• Sedimentation

• Solution

• Filtration

• Decantation

Which of these is an example of an insoluble substance?

• Sugar

• Salt

• Sand

• Milk

What is the method of removing insoluble impurities by allowing them to settle down at the bottom of a container?

• Filtration

• Distillation

• Sedimentation

• Boiling

After sediments have settled down, the process of removing the clear water above the mud or sand layer is called:

• Filtration

• Decantation

• Sedimentation

• Distillation

What tool is mentioned in the text for measuring wind speed?

• Thermometer

• Barometer

• Anemometer

• Rain gauge

Which property of air is shown when a balloon containing air inflates and occupies space?

• Air has weight

• Air exerts pressure

• Air occupies space

• Air is needed for burning

What is the process of separating insoluble substances by passing the solution through a filter paper?

• Sedimentation

• Decantation

• Filtration

• Distillation

In a solution like sugar in water, what is the liquid part (water) called?

• Solute

• Solvent

• Solution

• Sediment