National Physical Laboratory

The National Physical Laboratory (NPL) is the UK's National Measurement Institute, and is a world-leading centre of excellence in developing and applying the most accurate measurement standards, science and technology available.

These resources include posters that can be used in primary and secondary school to explain fundamental concepts of measurement, such as time, length, mass, and temperature.

There is also information on dealing with uncertainties in measurement.


Fact sheets

These fact sheets, from the National Physical Laboratory, are ideal posters for the classroom. They include illustrations and images to accompany the text. The following curriculum areas are covered: 

  • Acoustics: sound, frequency and ultrasound
  • Einstein: relativity, mass energy relation and...

Key Stage Two posters

These posters from the National Physical Laboratory are ideal for the Key Stage Two classroom and cover the seven SI base units.

Key Stage Three posters

These posters from the National Physical Laboratory are ideal for the Key Stage Three classroom.

The accuracy and precision poster explains the difference between the two concepts. These ideas are equally applicable for Key Stages Four and Five.

The sound poster explains the terminology of volume (...

Measurement Good Practice Guide: a Beginner's Guide to Uncertainty of Measurement *suitable for home teaching*

This publication from the National Physical Laboratory is an ideal resource for secondary teachers but could also be used by students at post-16 level. It can be used as a basis for best practice for taking measurements within the laboratory. The guide explains the basics of errors, uncertainties, spread, standard...

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