9787535365002 - 蜡烛燃烧的秘密-你好科学-化学18.蜡烛的燃烧 (1 risultati)

paperback. Condizione: New. Paperback Pages Number: 33 Language: Chinese. Blackout night. candle light can around the illuminated candle burns with a first heat. at the same time to shed the candle liquid and release the carbon dioxide we can not see. Sensitivity show at home with candles. we come to look at her burning need to…