雲、霧、霜、露、雨、雪的線上測驗

圖片來源：

Clouds. Photography. Encyclopædia Britannica Image Quest. Web. 16 Sep 2011. http://quest.eb.com/media/image.htm?mediaId=139_1958287

Fog. Photography. Encyclopædia Britannica Image Quest. Web. 16 Sep 2011. http://quest.eb.com/media/image.htm?mediaId=131_1383354

Frost. Photograph. Encyclopædia Britannica Image Quest. Web. 16 Sep 2011. http://quest.eb.com/media/image.htm?mediaId=106_931094
Dew Drops. Photography. Encyclopædia Britannica Image Quest. Web. 16 Sep 2011. http://quest.eb.com/media/image.htm?mediaId=139_1942359

Rain.. Photography. Encyclopædia Britannica Image Quest. Web. 16 Sep 2011. http://quest.eb.com/media/image.htm?mediaId=142_2334767 Snow.. Photography. Encyclopædia Britannica Image Quest. Web. 16 Sep 2011. http://quest.eb.com/media/image.htm?mediaId=142_2340587