Science Year 5 - Heat and Temperature

What will happen when the Bunsen burner is lighted?

• The water becomes cold

• The water boils immediately

• The water temperature increase

• The water freezes

What is the inference for your answer in (a)?

• Heat can evaporate

• Heat can be transferred

• Heat cannot move

• Heat cools the water

What will happen when the Bunsen burner flame is turned off?

• The water temperature is decrease

• The water temperature stays the same

• The water becomes cooler

• The water turns completely into steam

State the variables based on the investigation above.

What conclusion can be made from the investigation above?

• As the temperature of a material will decrease when it gains heat and increase when it loses heat.

• As the temperature of a material will increase when it gains heat and decrease when it loses heat.

• The temperature of a material will increase when it lose heat and decrease when it gain heat.

• The temperature of a material will increase and decrease when it loses heat.

State the freezing point and boiling point of water.

• 100°C and 50°C

• 50°C and 0°C

• 0°C and 100°C

• 25°C and 75°C

State the standard unit used to measure temperature.

• Joule (J)

• Newton (N)

• Celsius (°C)

• Liter (L)

What is the process called when water changes from a liquid to a gas?

• Transpiration

• Precipitation

• Evaporation

• Condensation

At what temperature does water freeze under standard atmospheric conditions?

• 25°C

• 0°C

• 32°F

• 100°F

What happens to the molecules of water as it heats up?

• The molecules become denser

• The molecules move faster

• The molecules stay still

• The molecules move slower