Matching Pairs Transparent, translucent...Online version Match. by Montenegro Guzmán Olga Lucía 1 The fire is a natural light source. 2 The lantern is an artificial light source. 3 The book is an opaque material. 4 Some light passes through these materials. 5 All light passes through these materials. 6 The lamp is a translucent material. 7 The firefly is a natural light source. 8 No light passes through these materials. 9 The lightbulb is a transparent object. 10 The candle is an artificial light source. Opaque materials. Transparent materials. Translucent materials.