Which state of matter can change its volume and spreads out to fill its container?

• solid

• liquid

• gas

When 50cm³ of water and 50cm³ of alcohol are mixed together in a measuring cylinder the total volume will be...

• 100cm³ because you just add the two volumes together

• 102cm³ because the particles will push each other further apart when they are mixed

• 98cm³ because the small water molecules fit into the spaces between the larger alcohol molecules

Identify the term that describes the movement of heat energy through a solid metal rod

• Conduction

• Convection

• Diffusion

• Radiation

Rank the states of matter in terms of their ability to expand and contract going from most able to least able.

• Solids then liquids then gases

• Liquids then gases then solids

• Gases then liquids then solids

• Gases then solids then liquids

Identify the change of state taking place when a liquid turns into a gas

• Melting

• Freezing

• Condensation

• Evaporation

What state of matter should go in circle 1?

• solid

• liquid

• gas

What state of matter should go in circle 2?

• solid

• liquid

• gas

What does the word expand mean?

• To increase in size / get bigger

• To decrease in size / get smaller

Which state of matter expands the most when heated?

• solid

• liquid

• gas

Which method of heat transfer happens when hotter particles rise and colder particles sink?

• conduction

• convection

• radiation