ICSE ICSE Class 6 - CISCE Question Bank Solutions for Chemistry

What are molecules?

Give one difference between atoms and molecules.

What are fluids? Give two examples

Classify the following into solids, liquids and gases.

Oxygen, milk, common salt, wax, stone, L.P.G, carbon- dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.

Give reasons

Liquids and gases flow but solids do not?

Give reasons

A gas fills up the space available to it.

Give reasons

 The odour of scent spreads in a room.

Give reasons

We can walk through air.

Give reasons

Liquids have definite volume but no definite shape

Give reasons:

When a teaspoon of sugar is added to half a glass of water and stirred, the water level in the glass remains unchanged.

Give reasons

When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar

Give reasons

 A red ink drop added to small amount of water in a glass turns the water red in some time.

Fill in the blanks:

Any matter which has a definite ______ but no definite shape is called a ______.

Fill in the blanks:

______ and ______ can flow.

Fill in the blanks:

The physical state of a substance, which has neither fixed volume nor fixed shape is a ______.

Write whether the following statements are true or false:

Only water can exist in three different states

Write whether the following statement is true or false:

If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely

For the following statement, say whether it describes a solid, a liquid or a gas.

Particles move about very quickly but do not leave the surface

For the following statement, say whether it describes a solid, a liquid or a gas.

Particles are quite close together

For the following statement, say whether it describes a solid, a liquid or a gas.

Particles are far apart and move in all directions