Class 9 SEBA General Science Chapter 1Matter in Our Surroundings

What is matter?

• Only solid objects

• Only living things

• Anything that occupies space and has mass

• Only liquids and gases

Which of the following is NOT considered matter?

• Water

• Light

• Air

• Sand

What are the five basic elements according to early Indian philosophers?

• Air, earth, fire, sky, water

• Water, earth, fire, metal, wood

• Air, water, earth, light, energy

• Fire, earth, water, ice, air

What do modern scientists classify matter based on?

• Physical properties and chemical nature

• Size and weight

• Color and shape

• Temperature and pressure

What is the state of matter that has a definite shape and volume?

• Plasma

• Solid

• Liquid

• Gas

Which of the following states of matter is highly compressible?

• Gas

• Liquid

• None of the above

• Solid

What is the term for the intermixing of particles of different types of matter?

• Evaporation

• Diffusion

• Sublimation

• Condensation

What happens to the kinetic energy of particles as temperature increases?

• It fluctuates

• It increases

• It remains the same

• It decreases

Which of the following is a characteristic of solids?

• They have no fixed shape

• They can flow

• They have a definite shape and volume

• They are compressible

What happens to a rubber band when it is stretched?

• It breaks immediately

• It changes shape and regains it

• It remains unchanged

• It becomes liquid