Flow, Precipitation, and Turbidity of the Red Cedar River Lab Report

Flow, Precipitation, and Turbidity of the Red Cedar River - Lab Report Example Apparatus/Tools used The set of tools for turbidity and Particle Load include a sounding line (a rope attached to a concrete weight), a timer, a supply of tongue depressors, and the aerial photo, a bucket to collect samples of river water bottles or jugs for transporting water samples to the lab, and a device for filtering known volumes of water, graduated cylinders, a supply of filters that will retain particles ≠¥1ÃŽ ¼m in size, metal dishes for drying and storing the filters, an oven and a desiccator to dry the filters, and a balance for measuring particle mass. Procedure In measuring turgidity and filtration of the river water sample, the procedures included, first the river water sample was collected from a Farm Lane bridge. Secondly, filter papers were obtained from the stack and placed on the manifold followed by screwing the filtering cup down tightly in order to avoid leaks. As a third procedure, a vacuum was turned on followed by measuring out 0.5L of water at a time, which was then placed into a graduated cylinder while carefully pouring it into the filter cup. Water was added to the cylinder until when the filter paper turned brown. Water from both flasks was emptied after every use. Thirty filter papers were then placed labeled metal dish. This was followed by placing the metal dish with the filter into a drying oven. It was then that the filters were tried for a period of 24 hours. Finally, with the use of a metal weighing dish, the weight of the dried dirty filter was recorded.

French Essay Example | Topics and Well Written Essays - 250 words

French - Essay Example ce moment-l, on permet aux les gens qui travaillent pour Le British Red Cross d'aider sans souci de leurs propres vies au besoin. Ceci devient particulirement ncessaire quand les sauveteurs travaillent pour sauver les vies pendant des catastrophes naturelles, journal. Il est important que les sauveteurs comprennent journalier qu'ils sont interdits de quitter la zone de secours sans permission s'ils travaillent, qui n'est pas tonnante. Ce qui est fascinant est comment les sauveteurs agissent quand il y a galement les types d'urgences personnels se produisant annuellement. Quand les gens avaient des difficults, Le British Red Cross pouvait les aider. L'horaire pour les personnes qui aident ces dsastres peut tre une heure, un jour, une semaine, un mois, une anne, ou plus longtemps. Le British Red Crossatteint beaucoup d'objectifs. Si elle soit pour un dsastre important qui se produit, une catastrophe naturelle qui se produit dans un secteur particulier, ou une urgence personnelle qui se produit, Le British Red Cross peut tre l.