5.8 Describe the arrangement and motion of particles in solids, liquids and gases

Solid

• Close
• Vibrating
• Little energy
• No bumping other than vibration

Liquid

• Sort of close, with some gaps
• Some movement
• Some energy
• Particles bounce / collide with each other, creating some gaps

Gas

• Far apart
• Lots of energy
• Lots of movement
• Collisions that spread particles often
• Collisions / bumping creates space between particles

5.7 Understand the changes that occur when a solid melts to form a liquid, and when a liquid evaporates or boils to form a gas

Solid to liquid

• More energy
• Particles move faster
• Bump more frequently
• Further apart
• Brush past each other

Liquid to gas

• Much more energy
• Particles move much faster
• Bump more frequently
• Very far apart
• Hardly touch (except when bumping..tee hee)

*mind blown*