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How to start a fire using a magnifying glass
Contributed by: Roe
  • 1. What is the primary energy source used when starting a fire with a magnifying glass?
A) Sunlight
B) Electricity
C) Chemical Reaction
D) Friction
  • 2. What material is best suited to be the initial tinder when using a magnifying glass?
A) Metal scraps
B) Wet leaves
C) Dry, dark-colored material
D) Large sticks
  • 3. What is the purpose of focusing the sunlight with the magnifying glass?
A) To filter out harmful UV rays
B) Concentrate the sun's energy
C) To spread the sunlight over a larger area
D) To cool the tinder
  • 4. Which of the following is a safety precaution to take when using a magnifying glass to start a fire?
A) Use gasoline to accelerate the process
B) Start the fire indoors
C) Have water or sand nearby
D) Wear sunglasses, even if it's cloudy
  • 5. At what angle should the magnifying glass be held relative to the sun?
A) Perpendicular
B) Any angle will work
C) 45 degrees
D) Parallel
  • 6. What does 'focal point' refer to in this context?
A) The burning tinder
B) The darkest spot on the ground
C) The center of the magnifying glass
D) The point where sunlight converges
  • 7. What is the best weather condition for starting a fire with a magnifying glass?
A) Foggy
B) Cloudy
C) Clear and sunny
D) Rainy
  • 8. What happens if the focal point is too large?
A) The fire will start immediately
B) The tinder will explode
C) The magnifying glass will melt
D) The tinder will not ignite
  • 9. What is the next step after the tinder begins to smoke?
A) Gently blow on the embers
B) Pour water on it
C) Leave it unattended
D) Cover it with dirt
  • 10. What is the purpose of blowing on the embers?
A) Protect the embers from wind
B) Disperse the smoke
C) Cool down the embers
D) Provide oxygen to the embers
  • 11. Once the tinder catches flame, what should you add next?
A) Plastic
B) Large logs
C) Wet leaves
D) Small twigs
  • 12. Why is it important to use dry tinder?
A) Dry tinder produces less smoke
B) Dry tinder ignites more easily
C) Wet tinder burns longer
D) Wet tinder is easier to find
  • 13. What kind of magnifying glass works best?
A) Any piece of glass
B) A concave lens
C) A convex lens
D) A flat piece of glass
  • 14. What color tinder tends to absorb heat better?
A) White
B) Reflective
C) Dark
D) Light
  • 15. What does it mean to 'nurse' the flame?
A) To ignore the flame
B) To carefully add small pieces of fuel
C) To pour water on the flame
D) To immediately add large logs
  • 16. Why is patience important when starting a fire with a magnifying glass?
A) It is a quick and easy process
B) Patience is never important
C) You must wait for the sun to set
D) It takes time to ignite the tinder
  • 17. What should you do if the sun goes behind a cloud?
A) Use a different method
B) Pour gasoline on the tinder
C) Give up
D) Wait for the sun to reappear
  • 18. Which of these is NOT a good source of tinder?
A) Green leaves
B) Dry grass
C) Cotton balls
D) Birch bark
  • 19. What is the ideal distance between the magnifying glass and the tinder?
A) Touching the tinder
B) The distance that creates the smallest, brightest spot
C) It doesn't matter
D) As far away as possible
  • 20. What should you consider the size of your fire when you have successfully started it?
A) How much tinder you have left
B) The size of your magnifying glass
C) How much you like fire
D) The use of the fire and environmental hazards
  • 21. What is the most important part of ensuring the flames continue to grow?
A) Using liquid accelerant on the fuel.
B) Using the magnifying glass the whole time.
C) Ignoring the flame after the twigs are added.
D) Gradually increasing the size of the fuel used.
  • 22. What should you do to extinguish the fire safely?
A) Leave it to burn out on its own.
B) Cover it with dirt and forget about it.
C) Smother the flames with gasoline
D) Douse with water and stir the ashes until cool.
  • 23. Why is a controlled burn important?
A) Because it burns longer.
B) Because the sun will burn out the flame regardless.
C) Because it looks better.
D) To prevent wildfires.
  • 24. What material can be used as a lens in the absence of a magnifying glass?
A) A clear ice formation
B) A phone screen
C) A piece of wood
D) A mirror
  • 25. How can you help the focal point when you have a magnifying glass?
A) Use a steady hand.
B) Pour water onto the lens.
C) Use a wobbly hand.
D) Let the magnifying glass get dirty.
  • 26. Which of these items can work as tinder if prepared correctly?
A) Rocks
B) Fresh pine needles
C) Wet sand
D) Dried plant down
  • 27. Why is proper ventilation important for your fire?
A) To put out the flames
B) To make the fire smaller
C) Provides oxygen for combustion
D) To make the fire colder
  • 28. What is the final step in cleaning up a fire?
A) Use gasoline to clear the ash.
B) Restore the area to its original state.
C) Make sure the ashes stay where they are.
D) Leave the area worse than before
  • 29. When selecting a site to start your fire, what should you consider?
A) Wind direction
B) What the prettiest scenery is
C) How many mosquitoes are around
D) Proximity to bears
  • 30. How often should you monitor your fire?
A) Only when it gets really big
B) Constantly
C) Just when you add fuel
D) Every 12 hours
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