We have reviewed the content of all resources listed below to be sure they are appropriate for supporting instruction. However, as the resources listed below are open-source materials, we cannot be held responsible for changes in content.
RESOURCES
The NASA website explains the electromagnetic spectrum and where different wavelengths fall on the spectrum. It talks about measuring electromagnetic radiation.
This MonkeySee video explains the electromagnetic spectrum. It also explains what a wavelength is and how different waves on the electromagnetic spectrum have different wavelengths.