Physical and Chemical

Laasya Mukka Period:6

Physical properties

Physical properties:

A characteristic of a substance that can be observed without changing the substance.


Examples:


  • Hardness
  • Texture
  • Color
  • Temperature

Chemical properties

Chemical Properties:A characteristic that is observed when a substance interacts with another substance


Examples:


  • Flamibility
  • Heat of combustion
  • Radioactivity
  • Ability to rust
Chemical Properties of Matter

Physical Change

Physical Change:

A change in matter that does not affect its chemical composition

Examples:

  • wood
  • water
  • breaking glass
  • crushing a can
Physical Change

Chemical Change

Chemical Change:

A chemical reaction; a process that changes substances into a new substance(related word: chemical reaction)


Examples:

  • burning wood
  • digesting food
  • mixing acid and base


5 indicators are:

  1. color changes
  2. gas produced
  3. new substance formed
  4. odor released

  5. temperature changes
Chemical Change