Question

directions: use the following terms to complete sentences below. electromagnetic waves infrared waves electromagnetic spectrum ultraviolet waves 1. waves that can travel through empty space are _. 2. the _ is the complete range of electromagnetic wave frequencies and wavelengths. 3. waves that have wavelengths between one thousandth and 0.7 millionths of a meter are known as _. 4. waves that have wavelengths between about 0.4 millionths and ten billionths of a meter are known as _. 5. you must protect your skin from _ because they can

Explanation:

1. Electromagnetic waves can travel through a vacuum.
2. The electromagnetic spectrum encompasses all frequencies and wavelengths of electromagnetic waves.
3. Infrared waves have wavelengths in the specified range.
4. Ultraviolet waves have the given wavelength range.
5. Ultraviolet waves can harm the skin, so protection is needed.

Answer:

1. electromagnetic waves
2. electromagnetic spectrum
3. infrared waves
4. ultraviolet waves
5. ultraviolet waves