Matter in Our Surroundings

Which of the following is NOT a property of matter?

• It occupies space.

• It has mass.

• It can exist in different states.

• It can be seen only with a microscope.

What is the physical state of water at 100°C?

• Solid

• Liquid

• Gas

• Plasma

Which of the following processes involves a change from the gaseous state to the liquid state?

• Evaporation

• Condensation

• Sublimation

• Melting

The temperature at which a solid changes into a liquid is called:

• Melting point

• Boiling point

• Freezing point

• Sublimation point

What happens to the temperature of a substance during a phase change?

• It increases

• It decreases

• It remains constant

• It fluctuates

Which state of matter has a definite volume but no definite shape?

• Solid

• Liquid

• Gas

• Plasma

Which of the following states of matter can flow?

• Solid and Liquid

• Liquid and Gas

• Solid and Gas

• Only Liquid

Sublimation is the process where a:

• Solid changes directly to a gas

• Solid changes to a liquid

• Liquid changes to a gas

• Gas changes to a solid

Which of the following increases the rate of evaporation?

• Decrease in surface area

• Decrease in temperature

• Increase in humidity

• Increase in surface area

The boiling point of water at sea level is:

• 0°C

• 50°C

• 100°C

• 150°C