Lesson 3. PHYSICAL CHANGES AND CHEMICAL CHANGES (4+5)

When a new substance forms as a result of a chemical reaction, what
type of change has occurred?

• Physical change
• Biological change
• Chemical change
• Nuclear change

What type of change does she notice in a burning wood?

• Physical change
• State change
• Color change
• Chemical change

Which of the following is a chemical change?

• Evaporation of water

• Sublimation of iodine
  

• Combustion of Liquified Petroleum Gas (LPG).
  

• Freezing liquid mercury.
  

Which of the following is an example of physical change?

• A plant collecting sunlight and turning it into food.

• Baking a birthday cake for your mother.
  

• Filling up a balloon with hot air.
  

• Burning a piece of paper.
  

Which of the following is a chemical change?

• Vapourization of liquid nitrogen
  

• Dissolving glucose in water.
  

• Rusting of iron.
  

• Sublimation of dry ice.
  

What kind of change does he observe when sugar dissolves in
water?

• A biological change.
• A physical change.
• A chemical change.
• No change at all.

What type of change does she notice in a burning candle?

• Physical change
• Chemical change
• Both chemical change and physical change

• State change

Which is NOT an indication of a chemical change?

• Shape Change
  

• Production of light
  

• Formation of a precipitate
  

• Temperature Change

What is the left part of a chemical equation called?

• Products

• Chemical equation

• Word equation

• Reactants

What is the right part of a chemical equation called?

• Products

• Chemical equation

• Word equation

• Reactants