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