All topics
14

Effects of Heat

Primary 4 · P4 Energy

Follow heat as it flows from hot to cold — faster through some materials than others — and see how gaining or losing heat changes things.

What you'll learn

  • Heat always flows from a hotter object to a cooler one, until both are the same temperature
  • Heat flows quickly through good conductors (metals) and slowly through poor conductors (wood, plastic, air, rubber)
  • Gaining heat makes matter expand; losing heat makes it contract
  • Heat gain or loss can change the state of matter — melting, boiling, evaporating, condensing, freezing

Heat Flow Chef

🎮 Game

Tap 🔥 to heat and ❄️ to cool, and serve every drink at the perfect temperature! Watch heat flow from hot to cold as you become a Heat Flow Chef!

Heat Flow Quiz

❓ Quiz

Test your heat-flow smarts in 10 speedy questions! Tap the right answer, build a fiery 🔥 streak, and learn how heat always moves from hot to cold. Perfect for young scientists!

Finished? Challenge these next