Some substances color the flame. Substances containing sodium are yellow, those containing copper are green.

Some substances color the flame. Substances containing sodium are yellow, those containing copper are green. Grabbing crystals of various substances with the eye of a large sewing needle driven into a wooden stick, bring them into the flame of an alcohol lamp or gas stove. Write down how the color of the flame changed.

Flame color during combustion of substances: compounds of lithium, calcium and strontium in red; potassium to purple; barium, bismuth – green; zinc – to white-green; lead, tin in pale blue.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.