Chapter 1
The chemical building blocks of fire
View / Create
Answer
Chapter 2
How humans mastered the spark
View / Create
Answer
Chapter 3
Dismantling the fire triangle
View / Create
Answer
Chapter 4
Modeling fire with plastic bricks
View / Create
Answer
YOUR GOAL
Master of The science of fire
Ch 2 · How humans mastered the spark
lego LEGO Fire Science
Just a bit of heat, some fuel, and air, And a brilliant spark is dancing there!
lego The modern friction match, invented in 1826, packaged all three elements of fire onto a tiny wooden stick.
lego Striking flint against iron pyrites or steel allowed humans to create instant, hot sparks.
Fun Fact
Ancient fire: Homo erectus began using controlled fire nearly 1 million years ago, transforming human diet and brain evolution.
Glossary
flint (noun)
A hard, fine-grained quartz that produces a spark when struck against steel. Homo erectus struck brick replicas of this mineral to ignite history's first controlled campsite fires.
A hard, fine-grained quartz that produces a spark when struck against steel. Homo erectus struck brick replicas of this mineral to ignite history's first controlled campsite fires.
Quiz
What physical force generates the heat needed to start a fire when using a hand drill?