Zinc is a bluish-white, moderately hard metal. It is brittle at room temperature and at temperatures above 150Â°C, being workable only in the range between 100Â°C and 150Â°C.It is an active metal and will displace hydrogen even from dilute acids.The principal use of zinc is for the galvanizing of iron sheets or wires.inc is a bluish-white, moderately hard metal. It is brittle at room temperature and at temperatures above 150Â°C, being workable only in the range between 100Â°C and 150Â°C. It is an active metal and will displace hydrogen even from dilute acids. The principal use of zinc is for the galvanizing of iron sheets or wires.
Cooler stars emit much of their light in the red part of the spectrum, so you see them as red. Somewhat hotter stars, like our Sun, emit much of their light in the green (or yellow), with smaller amounts of red and blue. This balance of colors your eye sees as white.
the planets in our solar system shine by reflecting the light that they receive from the sun back into our eyes the sun is a star stars make their own light by converting hydrogen into helium within their coresthis releases the energy that we see coming from starsplanets are round they orbit stars and are not satellites of another planethe planets in our solar system shine by reflecting the light that they receive from the sun back into our eyes the sun is a star stars make their own light by converting hydrogen into helium within their cores this releases the energy that we see coming from stars planets are round