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Revision as of 09:11, 4 April 2019

Key Stage 2

Meaning

All the colours in the rainbow.

The spectrum is all the colours of the rainbow.

About the Spectrum

The spectrum is made of the following colours:
  • Red
  • Orange
  • Yellow
  • Green
  • Blue
  • Indigo
  • Violet

Key Stage 3

Meaning

A spectrum is when the different wavelengths of visible light are separated.

About Spectra

The spectrum of white light can be seen in a rainbow.
A prism can be used to make a spectrum.
The spectrum of white light is made of the following colours:
  • Red
  • Orange
  • Yellow
  • Green
  • Blue
  • Indigo
  • Violet
If a spectrum is made from non-white light then it may not have all these colours.

Key Stage 4

Meaning

A spectrum is when the different wavelengths of visible light are separated.

About Spectra

A spectrum depends on the source of light.
The line spectra from the flame emission spectroscopy of several metals.
FlameEmissionSpectroscopy.png
The spectra for the emission of light from different elements are shown.