1. When a liquid is heated, the particles...?
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2. Why are metals good conductors of heat?
- There is space between the particles for energy to pass
- The particles are tightly packed and they contain free electrons
- The particles are tightly packed in rows
- They contain free moving electrons
3. What happens when a liquid evaporates?
- The particles gain enough energy to escape the surface of the liquid
- The particles lose energy rapidly which causes them to become lighter
- The particles of liquid react with the gas around them to form molecules
- The liquid particles pass on their energy to the gas surrounding them
4. When a gas condenses, what happens to the energy?
- It increases, causing the particles to vibrate and join together
- It is absorbed by the liquid causing the particles to move more
- It is released and causes the temperature to increase
- It is transferred to the container, cooling the surface
5. Why are flasks made from plastic?
- Plastic is colder than metal
- Plastic is a poor conductor
- Plastic is warmer than metal
- Plastic is a good conductor
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