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Science

Heat on the Move

Overview

Students investigate how heat moves from one place to another, discovering conduction, convection, and radiation through simple observations.

Learning Objective
Students understand that heat moves from hot to cold and can describe the three ways heat is transferred.

Resources needed

  • A metal spoon and a wooden spoon
  • Hot water (not boiling)
  • A sunny spot outdoors

Lesson stages

0 / 7 done
  1. 1 Put both spoons in hot water for 30 seconds. Touch the handles — which is hotter?
  2. 2 Introduce conduction: heat travels through solid materials. Metals conduct well, wood poorly.
  3. 3 Ask: why do pots have wooden or plastic handles?
  4. 4 Introduce convection: in liquids and gases, heat rises as warm fluid moves up and cool fluid sinks.
  5. 5 Demonstrate: hold your hand above a candle (not touching) — feel warm air rising.
  6. 6 Introduce radiation: heat that travels through empty space as waves — the Sun heats the Earth this way.
  7. 7 Ask: which type of heat transfer heats a room? (All three — radiator radiates, air convects, walls conduct).

Tap a step to mark it as done.

Variations

  • Test different materials as insulators — which keeps a cup of warm water hot longest?
  • Make a simple model to show convection in water using food colouring.
  • Compare standing in sunlight vs shade — radiation vs absence of radiation.
More information

Teach: conduction, convection, radiation, insulator, conductor, thermal energy, transfer. Each method has a different medium: solids for conduction, liquids/gases for convection, no medium needed for radiation.

Focus on conduction and radiation before introducing convection, which is the most conceptually complex.

Can students name the three types of heat transfer and give one example of each? Can they explain why a metal spoon gets hotter than a wooden one in the same hot water?

Hot water, a metal spoon, and a wooden object demonstrate conduction. Sunlight demonstrates radiation. No specialist equipment needed.

Students often think heat and temperature are the same thing. Temperature measures how hot something is; heat is the energy that moves between objects of different temperatures.

Heat transfer explains everything from cooking and insulation to climate and solar energy. Understanding the three mechanisms is essential for both everyday life and advanced physics.

Activity details
Primary Medium 25 minutes 5 minutes prep Small Group, Whole Class Indoor & Outdoor
Topics
Heat Thermal Energy Conduction