GCSE Biology · key term

Millimetre (mm)

Definition

A unit equal to one thousandth of a metre: $1\text{ mm}=10^{-3}\text{ m}$ .

Used by OCR

Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)

Each step from metres to millimetres, from millimetres to micrometres, or from micrometres to nanometres changes the numerical value by a factor of 1000. The object itself has not changed size; only the unit used to describe it has changed.
Revise: Scale and Calculations

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GCSE Biology · key term

A unit equal to one thousandth of a metre: $1\text{ mm}=10^{-3}\text{ m}$ .

Used by OCR

Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)

Each step from metres to millimetres, from millimetres to micrometres, or from micrometres to nanometres changes the numerical value by a factor of 1000. The object itself has not changed size; only the unit used to describe it has changed.
Revise: Scale and Calculations

Create a free account to read GCSE Biology revision notes for your exam board and track your progress.