Demonstration: oxygen and carbon dioxide cycle

Oxygen during the day at the lake is high because the sun is beating down upon the waters and the heat distributes more oxygen as the water evaporates unlike at night when the moon is out and the sun is on the other side of world, the moon does not give off heat or is able to evaporate water and elevate the oxygen levels. Instead the moon elevates the CO2 levels.

Freshwater Careers

The careers I found most interesting in this video was the water managers, the rangers and the fish librarian.
The fish librarian was really cool because that's a cool job! They keep track of the fish and they are important because what if you need to look up a fish? Have no fear because you can just goto the fish librarian and they'll help you out!!
The water manager was cool because they oversee all the water and how it's being purified and stuff.
And the rangers I think are cool because they're on sight whenever and wherever you need them and they always have cool fun facts for you to learn about whenever you and your family are at a wildlife park and their job consist of also protecting the wild animals that roam America like the cougar or the wolf!

(Pictures in order: fish librarian, Park Ranger and then Water Manager)

Oligotrophic, mesotrophic and eutrophic water systems

Oligotrphic is very clear water and has almost not plants, animals or nutrients in its waters.

Mesotrophic is in between oligotrophic and eutrophic! It has a medium amount of plants, animals and nutrients! It's not as Merky as eutrophic waters but its not as clear as olitrophic waters

Eutrophic is where the water is completely Merky and it has an abundance of plants, animals and nutrients.

It is important to understand each of these different types of water because they are the life line of freshwater ecology and must-knows for all of it.
(Pictures in order: oli, meso and eutro)

Lentic Systems

Freshwater ecosystems are divided into two catagories; Lentic and Lotic. But we're gonna talk about Lentic systems.

A Lentic system has well defined boundries and includes lakes, ponds, marshes, swamps and bogs.

• A lake is a body of water where light penetrates to the bottom

Observations of Fish

Observations are an important part of our Freshwater Project. They help me and my partner notice how our aquatic animals lives and behaves in its tank. Our freshwater animal is a redslider turtle. What makes a good observation would be watching and studying their behavior with other fish and watch their interaction. You can always tell who is the boss fish and who are the nonboss fish just by the way the fish swim together and one is swimming alone. This is an important scientific inquiery because it further helps you understand your aquatic enviroment for future knowledge.

Density and temperature demonstration

The demonstration helped me understand how the water temperature is affected by density. The cold water is less dense than the hot water making it hard to mix.

The red represents the hot water and the blue the cold. When the red was placed on top the water turned purple but when the cold was on top of the hot they didn't mix

The Water Cycle

http://www.youtube.com/watch?v=KsV7kvyxGQU&edufilter=TkZEbkhj6lafXjw2-aQZcw
^^ Water cycle video

What me and Courtney Clubb have learned is how the water cycle worked, but more in depth from what we originally learned in elemantary school. What helped us alot was Ms. Wood's water cycle closed container that had plastic props in the forms of a mountain that had a stream running down into a plastic lake. We put ice cubes in the top tray which was heated and melted by a lamp (represents the sun) and once those ice cubes melted (rain) it woud drip down into the mountain (precipitation) and create a run off into the stream (run off) the water would stay there until it would evaporate and condensate on the walls of the plastic box.