science states of matter

• How are the particles arranged in solids?

  Very close together
• The forces of attraction between particles in solids hold them together
• The particles in solids are arranged in a regular repeating pattern called a lattice structure.
• How do particles in solids move?

  Vibrating about a position
• In liquids, the particles are arranged in a random way and are close together
• Liquids can be easily compressed or squashed.

  False
• How are the particles arranged in a gas?

  Widely spaced and randomly
• Steps involved in a liquid turning into a gas

  1️⃣ Liquid absorbs thermal energy

  2️⃣ Liquid boils

  3️⃣ Particles escape from the surface

  4️⃣ Liquid turns into a gas
• Evaporating is when a liquid turns into a gas below its boiling point.
• What happens to energy when a liquid is cooled to form a solid?

  Energy is transferred to surroundings
• Sublimation is the process where a solid changes directly into a gas.
• Match the change of state with its definition:

  Melting point ↔️ Temperature at which solid turns to liquid

  Boiling point ↔️ Temperature at which liquid turns to gas
• The stronger the forces between particles, the higher its melting and boiling points.