ICSE ICSE Class 7 - CISCE Question Bank Solutions

Select the correct answer to the statement given below:

Imaginary path around the nucleus of an atom in which electrons revolve.

Complete the table by writing the symbols of the following elements

Write your observation and conclusion for the following:

When few marbles are put in a glass half-filled with water.

Write your observation and conclusion for the following:

Ice is kept at room temperature.

State three main characteristics of the particles of matter.

Define: Solid

Define: Liquid.

Define: Gas.

Why are liquids and gases called as fluids.

Define interconversion of states of matter.

Under what conditions do solids, liquids and gases change their state.

Why do solids, liquids and gases differ in their physical state?

Fill in the blank:

The molecules are made up of ________

Name the terms for the force of attraction between the molecules of matter.

Name the terms for the process due to which a solid directly changes into its vapours.

Classify the following into solid, liquid and gas:

Coal, kerosene, wood, oxygen, sugar, blood, water vapour, milk, wax.

Name the smallest particle from which matter is made up.

Define Intermolecular force of attraction.

Define  Intermolecular space.

Classify the following into solids, liquids and gases.
Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.