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🧪 Lab 9 of 19 · Science Lab - Advance 1 · Class 8

Experiment 8 — Put Out the Fire

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Topic: Chemistry · Class 8 · Combustion and flame

Aim: Put the candle flame out by removing one condition needed for burning.

Daily: A fire extinguisher, a pan lid over a kitchen fire, and sand thrown on burning rubbish all work the same way — remove fuel, air or heat, and the fire dies.

Question: A burning candle is covered with a glass jar. What happens, and why?

Exp: Burning needs oxygen. Sealed under a jar, the candle exhausts the supply.

Question: The three requirements for burning are fuel, heat and…

Exp: Remove any one and the fire stops.

Question: The lowest temperature at which a substance catches fire is its…

Exp: Below it, the fuel will not burn.

Question: Water should NOT be used on…

Exp: It spreads burning oil and conducts electricity.

Question: The hottest part of a candle flame is the…

Exp: Combustion is complete there.

All activities in Science Lab - Advance 1

  1. Part 2 — Chemistry
  2. Experiment 1 — The Bed of Nails
  3. Experiment 2 — How Far Does the Jet Squirt?
  4. Experiment 3 — Measuring Friction
  5. Experiment 4 — Pitch, Loudness and the Bell Jar
  6. Experiment 5 — Charge, Sparks and Lightning
  7. Experiment 6 — Mirrors Facing Mirrors
  8. Experiment 7 — Electroplating a Spoon
  9. Experiment 8 — Put Out the Fire
  10. Experiment 9 — Metal or Non-metal?
  11. Experiment 10 — Which Metal Wins?
  12. Experiment 11 — Choose the Right Fabric
  13. Experiment 12 — Splitting Crude Oil
  14. Experiment 13 — Make the Water Safe
  15. Experiment 14 — Build a Plant Cell
  16. Experiment 15 — Wake Up the Yeast
  17. Experiment 16 — Grow the Best Wheat Crop
  18. Experiment 17 — Break the Food Web
  19. Experiment 18 — The Life Cycle Puzzle

Practise for Class 8