WATER: WHERE DOES IT COME FROM THE WATER GO????

Subtitle Here

Warm Up• Write a homework reminder – get it

stamped!• Update your Table of Contents for

today!• Answer the following with your table

partner:− What percentage of Earth is covered in

water?− What percentage of that is salt vs.

fresh?− Where is most of Earth’s fresh water

located?

Date Session#

Activity Page#

4/29 & 4/30

2 Where Does Water Go? Note Guide 2

QUICK REVIEW:• What were some obvious & not

so obvious sources of water?– Oceans, lakes, rivers, streams,

ponds, swamps, puddles, aquifers, icebergs, clouds, underground reservoirs, glaciers, in the human body etc.

• Where does all the water come from???– The WATER CYCLE

• What makes water so unique?

Water: Where Does it Come From, Where

Does it Go?• All water sources are connected

through the WATER CYCLE…• But water sources are also

connected through something called DRAINAGE…

Drainage is most related to the

runoff portion of the water cycle…what can happen when water runs

off?

WHERE DOES THE WATER DRAIN?

Drainage Basins/Watersheds

Drainage Basins/Watersheds

• An area of land where all water flows to a central river and then eventually to the ocean

But how does it know which way to go?

Divide = ridge of land from which water will flow in different directions

(from high elevation to low; gravity also plays a role)

Which Watershed Are We In?

• Catawba River Wateree River Santee River Atlantic Ocean!

Watershed Activity:

• Create your group’s village on the white piece of paper showing the following things:− Black marker: main streets and buildings− Blue marker: rivers or creeks− Green marker: grass and trees− Brown marker: exposed soil that could

erode− Red marker: pollutants from cars, people,

and animals• Crumple up piece of paper & open to represent your village• Add water source with mist of water!

Watershed Discussion:• If this is a model of a

watershed…−What do the creases in the

paper represent?−What happens to the ink from

the markers as the water flows?−Where will the water/ink

eventually go? Highest or lowest place?

− Are there any problems you see with this watershed?

DOES ALL OF THIS WATER THAT DRAINS AWAY ALWAYS STAY ON THE SURFACE?

Groundwater:• Groundwater:

− is water that soaks into the soil and collects underground

• Water Table: • - the top layer of • ground waterEver dig a

hole at the beach and hit water?

HOW DOES THE WATER GET IN TO THE GROUND?

Groundwater:• Through ___________, water

soaks into the ground, but groundwater can only occur closer to the Earth’s surface.

Why?• It can only get so far into the

ground before it hits bedrock…

Groundwater occurs in the layers of the Earth where there are spaces between the rock.Permeable:• A substance that

allows water to flow through it

• loose rock & sediment

Impermeable:

• A substance that does NOT allow water to flow through it

• solid rock

Permeable vs. Impermeable:

WHERE IS GROUNDWATER STORED?

Groundwater is stored in AQUIFERS…

• Aquifer:−A permeable rock layer that

stores water and allows water to flow through it

Water from aquifers is considered to be very clean…why would the water in an aquifer so

clean?

HOW DOES GROUNDWATER COME BACK UP TO THE SURFACE?

Groundwater Comes Back Up to the Surface!• Spring:

− Water that naturally flows out of the ground because it is below the water table

• Well:− A hole in the

ground that reaches down to the groundwater in aquifers

- Can be natural or synthetic

Tie it Together!Example: A Drop’s Life...http://www.youtube.com/watch?v=5Ug1hravb9Q

• Dear Diary… – Imagine you are a water molecule and you are writing in your diary. Explain the journey you take through the water cycle and what is happening to you along the way.

• Must include AT LEAST 4 steps from the water

cycle & 6 other vocabulary words from below…

• Polarity, adhesion, cohesion, density, buoyancy, specific heat, universal solvent, watershed, groundwater, water table, aquifer, spring, well, permeable, impermeable AND the steps of the water cycle.

• UNDERLINE THE VOCABULARY WORDS!

HOMEWORK• First EOG Review Booklet

Checkpoint will be NEXT CLASS!:

− You should have AT LEAST one full unit done by now…more is even better!

− Remember, 5 units in 5 weeks = about 1 unit per week

− If you are making progress this should be an easy grade!

− Remember, the checkpoint day is also an opportunity to ask questions!