6.2.3: Plan and carry out an investigation to determine the relationship…

Hot and Cold: Particles on the Move Grade 6 · partly supports this outcome

Why tires go soft in winter, why sidewalks have gaps, and how a thermometer knows. Five lessons on what heating and cooling do to the particles in everything around us.

• Why does food colouring spread faster in hot water? 45–60 min

  Two cups, two drops, one race. Students drop food colouring into warm and ice-cold water at the same moment, then explain what the moving colour tells us about particles they can't see.

• Can you keep an ice cube frozen the longest? 60 min, plus a 40-minute wait (teach something else while the ice sits)

  A design challenge with insulation, a budget and a class leaderboard. Teams build an ice cube keeper, measure how much melted, and explain why the best designs slow down heat moving in.

Printable practice for 6.2.3

These pages practise a closely related idea; the match to 6.2.3 is partial.

• Hot and Cold: Particles on the Move workbook included with the unit

  2 English-support pages, 1 reading, 1 unit review, 1 unit test, with answer keys.

• Hot Stuff: Heat, Temperature and Cooling workbook included with the unit

  3 practice pages, 3 readings, 1 word wall, 1 unit review, 1 unit test, with answer keys.

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