WATER MIXES

Warm-up 10/15 Since rivers, creeks, and streams are

considered freshwater, and their main goal is to reach a larger body of water (i.e. oceans, which is salt water), predict what you think will happen to plant life and the ecosystem at the location where freshwater and saltwater meet.

Why is it so hard to find pure water on Earth? ¾ of our planet covered in H2O, how

much is salty?

But why can’t our water stay fresh… Water is a solvent (it can dissolve other

substances) Water ranges from dissolving nutrients

from rocks and soils to dissolving things such as gases in the air

Solvent – the liquid in which a substance is dissolved when a solution is formed

Ex1. Water (solvent) in saltwater lakes Ex2. water (solvent) in Koolaid drink mix

Solute – the substance that is being dissolved when a solution is formed

Ex1. Salt (solute) in saltwater lakes Ex2. Koolaid powder (solute) in Koolaid

drink mix

Solution – a mixture of one or more substances with water that forms a clear, colored, or colorless liquid

Ex1. water (solvent) + salt (solute) = saltwater lake (solution)

Ex2. water (solvent) + Koolaid powder (solute) = Koolaid drink mix (solution)

Identify the solvent, solute, and solution

solvent

solute

solution

Remember…. Solutes dissolve in solvents

to make a solution.

Estuaries have twice the life because 2 ecosystems are colliding

When freshwater and Saltwater meet… Double the plant life!!!!! Double the breeding & feeding

Fresh river & salt ocean water mix up with twice life & nutrients which benefit all.

Fresh water rivers run into salty coastal waters. Two big groups of life breed & feed in the tall grasses of our estuaries.

When salt & fresh water mix, it is called brackish.

2 types of estuary:SALT MARSH

Atlantic Carolina coastsStinky cord grassAbsorbs tons of moisture

MANGROVESLouisiana & gulfHurricane proof treesAbsorbs tons of moisture

Great breeding grounds--nursery

2 types of estuary:SALT MARSH

Atlantic Carolina coastsStinky cord grassAbsorbs tons of moisture

MANGROVESLouisiana & gulfHurricane proof treesAbsorbs tons of moisture

Great breeding grounds--nursery

2 types of estuary: 2X life & nutrients

SALT MARSHAtlantic Carolina coasts Stringy cord grassAbsorbs tons of moistureGreat breeding grounds

MANGROVESLouisiana & gulfHurricane proof treesAbsorbs tons of moistureGreat nursery