What are the highest frequency and lowest frequency parts of the em spectrum

The EM Spectrum goes like this
Radio, Microwave, Infared/Heat, Visible Light, Ultraviolet (UV), X-rays, and Gamma Rays

At the left of the spectrum (Radio) are the waves with lowest frequency. At the right of the spectrum (Gamma Rays) are the waves with the highest frequency.
:) hope this helps

The density of water is 1 g/cm cubed and in order for the pebble to sink its density has to be greater than the density of water and in order for the twig to float its density has to be less than the density of water