P3 Science · Chapter 15brightbit.net/worksheets
Heat and Temperature
Name: ______________________Class: ________Date: ____________Score: ____ / 10
- 1.
What is the difference between heat and temperature?
(a) Temperature measures how hot something is; heat is a form of energy that flows(b) They mean the same thing(c) Heat measures how hot something is; temperature is energy(d) Temperature is the amount of energy; heat is a feeling
- 2.
What instrument is used to measure temperature?
(a) Thermometer(b) Ruler(c) Balance(d) Beaker
- 3.
Heat always flows from:
(a) A hotter object to a cooler object(b) A cooler object to a hotter object(c) The larger object to the smaller object(d) The heavier object to the lighter object
- 4.
A metal spoon left in hot soup becomes hot. How did heat reach the spoon?
(a) Conduction — heat was conducted through the spoon(b) Convection — hot liquid rose up the spoon(c) Radiation — heat was given off as rays(d) Evaporation — water carried heat to the spoon
- 5.
Which material is a good conductor of heat?
(a) Copper(b) Wood(c) Plastic(d) Wool
- 6.
Why are cooking pot handles made of wood or plastic?
(a) Wood and plastic are poor heat conductors (insulators), so the handle stays cool(b) They are lighter than metal(c) They look nicer(d) Wood is a better heat conductor than metal
- 7.
Water at 80°C is poured into a cup with water at 20°C. What will happen?
(a) Heat flows from the hotter water to the cooler water until they reach the same temperature(b) The cooler water heats the hotter water(c) Nothing happens — they stay at different temperatures(d) The hotter water evaporates immediately
- 8.
A thermometer reads 37°C. This is:
(a) Normal human body temperature(b) The boiling point of water(c) Room temperature(d) The freezing point of water
- 9.
State what happens to the liquid inside a thermometer when it is placed in hot water.
- 10.
Why do we wear dark-coloured clothes in winter and light-coloured clothes in summer?
(a) Dark colours absorb more heat; light colours reflect more heat(b) Dark colours reflect more heat; light colours absorb more heat(c) Colour has no effect on heat absorption(d) Dark clothes are warmer because they are thicker
Answer key — P3 Science: Heat and Temperature
For parents. Step-by-step explanations for every question are free on brightbit.net.
- 1.(a) Temperature measures how hot something is; heat is a form of energy that flows
- 2.(a) Thermometer
- 3.(a) A hotter object to a cooler object
- 4.(a) Conduction — heat was conducted through the spoon
- 5.(a) Copper
- 6.(a) Wood and plastic are poor heat conductors (insulators), so the handle stays cool
- 7.(a) Heat flows from the hotter water to the cooler water until they reach the same temperature
- 8.(a) Normal human body temperature
- 9.The liquid expands and rises up the tube
- 10.(a) Dark colours absorb more heat; light colours reflect more heat
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