TED-ED: Everything changed when the fire crystal got stolen - Alex Gendler

A group of young apprentices accidentally swallow sacred crystals, risking transformation into elemental spirits. The monks must determine who consumed which crystal using logic and proof by contradiction. The elements compel truth or lies, adding complexity to the task. Through strategic guessing and contradiction, the monks identify the crystal holders and prevent disaster.

What event triggered the crisis involving the young apprentices?

• They lost the sacred crystals in the forest.

• They swallowed the sacred crystals in panic.

• They sold the sacred crystals to outsiders.

• They accidentally broke the sacred crystals.

According to the rules, which crystals compel their holders to lie?

• Earth and Fire

• Water and Air

• Earth and Water

• Fire and Air

Who did Sumi accuse of taking the water crystal?

• Riku

• Bella

• Herself

• Jonah

What logical method is used to solve the puzzle of who consumed which crystal?

• Deductive Reasoning

• Process of Elimination

• Proof by Contradiction

• Trial and Error

Which crystal did Bella end up having?

• Air

• Fire

• Earth

• Water