NOAA http://oceanservice.noaa.gov/facts/light_travel.html NOAA on Light Depths http://oceanservice.noaa.gov/facts/light_travel.html euphotic NOAA on Light Depths Ocean Zones WebQuest How far does light travel in the ocean? run out euphotic region 200m http://oceanservice.noaa.gov/facts/light_travel.html http://oceanservice.noaa.gov/facts/light_travel.html penetrates beyond 200 meters (656 feet) as deep as 1,000 meters into the ocean run out http://oceanservice.noaa.gov/facts/light_travel.html three strata or zones of sunlight penetration little light little light http://oceanservice.noaa.gov/facts/light_travel.html http://oceanservice.noaa.gov/facts/light_travel.html little light http://oceanservice.noaa.gov/facts/light_travel.html oceanservice.noaa.gov ne bastano mille metri http://oceanservice.noaa.gov/facts/light_travel.html 200 metres light barely penetrates the ocean darkness 200 meters euphotic region only reaches down only reaches down NOAA little light about 1,000 meters midnight zone little light How far does light travel in the ocean? only reaches down darkness run out Light http://oceanservice.noaa.gov/facts/light_travel.html http://oceanservice.noaa.gov/facts/light_travel.html euphotic region euphotic region midnight zone only reaches little light little light no light little light http://oceanservice.noaa.gov/facts/light_travel.html