1 00:00:00,000 --> 00:00:22,000 Copper. Copper is one of the two colored metals. It's a very reddish brown color, but it turns green when it's exposed to a long time to the light. 2 00:00:22,000 --> 00:00:42,000 Copper is a natural metal. It absorbs heat very easily. 3 00:00:42,000 --> 00:00:54,000 That's why some families use it to make food and for cooking. 4 00:00:54,000 --> 00:01:05,000 They use it in electric waves to make electric flows to release heat. 5 00:01:05,000 --> 00:01:26,000 Thank you for your attention.