SCS Year 8 States of Matter

In which state of matter are the particles mostly touching but arranged in a random way?

• Solid

• Liquid

• Gas

• Plasma

In which state of matter do the particles have the most energy?

• Solid

• Liquid

• Gas

Why can liquids not be compressed easily?

• The particles are in a random arrangement

• The particles are closely packed

• The particles are free to move over each other

• The particles are too large

Why do solids have a fixed shape?

• The particles are fixed in place

• The particles are closely packed

• The particles vibrate

What is the name of the change when a liquid becomes a solid?

• Melting

• Boiling

• Freezing

• Condensing

What is sublimation?

• When a solid turns into a gas

• When a gas turns into a solid

• When a gas turns into a liquid

• When a solid turns into a liquid

What eventually happens if energy is continually removed from a liquid?

• It boils

• It evaporates

• It condenses

• It freezes

What eventually happens to a gas if its pressure is increased?

• It condenses

• It evaporates

• It melts

• It boils

Which of the following will sublime at room temperature and pressure?

• Ice

• Water

• Graphite

• Solid carbon dioxide (dry ice)

Which one of the following is not a property of a gas?

• Definite mass

• Can be compressed

• No definite shape

• Definite volume