Scissors

device · 1500 BC · Ancient world

Two blades on a pivot — a pair of levers.

What it is made of

• Scissor blades — has part. Two crossing blades.
• Pivot joint — has part. A screw axle.
• Interlinked metal rings — has part. Finger rings.

Principles and materials it uses

• Lever — uses. Scissors are two first-class levers.
• Wedge — uses. The blades cut like wedges.
• Bronze — is made of. Ancient scissors were bronze.
• Plastic — is made of. Scissor handles are often plastic.
• Steel — is made of. Steel.

Take Scissors apart

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