P5 Water and Its change of state

In a wooden box, objects P and Q are placed touching each other. Heat flows from P to Q.

Which statement below explains why heat flows from P to Q?

• P has more mass than Q.

• P is at a higher position than Q.

• P is at a higher temperature than Q.

• P is a better conductor of heat than Q.

What is the process that is directly affected by the sun?

• Condensation

• Precipitation

• Collection

• Evaporation

Based on the experiment, which of the following is possible?

• Melting Point of P: 20°C
  Boiling Point of P: 105°C

• Melting Point of P: 25°C
  Boiling Point of P: 100°C

• Melting Point of P: 30°C
  Boiling Point of P: 95°C

• Melting Point of P: 50°C
  Boiling Point of P: °110C

• A and B only

• B and C only

• A and C only

• A, B and C

What are processes X and Y?

• X: freezing

  Y: evaporation

• X: condensation

  Y: freezing

• X: freezing

  Y condensation

• X: condensation

  Y: melting

• A and B only

• A and C only

• B and C only

• A, B and C

4 glasses of water are placed on a table.

Which of the following will lose heat fastest to the surroundings?

• 
• 
• 
• 

What do the water droplets found on the underside of the cover represent in the water cycle?

• Clouds

• Water

• Water vapour

• Rain

At which point of the graph was the beaker placed in the freezer?

• A

• B

• C

• D

The mist was formed because the __(i)__ surrounding air comes into contact with the __(ii)__, __(iii)__ heat and __(iv)__ into water droplets that appear as mist.

What are the words in the blanks?

• warmer; ice; loses; condenses

• warmer; plastic strips; gain; evaporates

• cooler; ice; loses; condenses

• cooler; plastic strips; gain; evaporates