Classification of Matter

• Solid

  A solid is a state of matter that has a fixed shape and volume. Examples: rocks, metals, and ice.

  
• Liquid

  A liquid is a state of matter that has a fixed volume but takes the shape of its container. Examples: water, oil, and juice.

  
• Gas

  A gas is a state of matter that has neither a fixed shape nor a fixed volume. Examples: air, helium, and oxygen.