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==Key Stage 4==
===Meaning===
[[File:BlackBodyRadiationSpectrum.png|right|300px|thumb|This is a [[graph]] of the [[Black Body Radiation Spectrum|'''black body radiation''' spectrum]] for several [[temperature]]s.]]
'''Black body radiation''' is the [[Electromagnetic Wave|electromagnetic radiation]] given off by all [[object]]s with a [[temperature]] above [[Absolute Zero|absolute zero]] (0 Kelvin or -273°C).