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Early human making fire - Stock Image - E439/0132 - Science Photo Library
First Human Fire Starter Was 1.6 Million Years Ago, Scientist Says
The Bearded Science Guy shows of fire tornado experiment | wzzm13.com
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"Fiery Foam" experiment | MEL Chemistry
20 Favorite Fire Science Projects
Early humans making fire - Stock Image - E439/0130 - Science Photo Library