Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Ocean Current

No description
by

Nikoleta Licheva

on 6 March 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Ocean Current

Ocean Currents
Lesson By:
What
affects
surface currents?
Ocean currents are
streamlike movements

of water in the oceans
What are the types of ocean currents ?
There are
3 types
of ocean currents
What are ocean currents?
1. Surface Currents
2. Deep Currents
3. Convection Currents
Continental Deflections
The Coriolis Effect
Global Winds
Continental Deflections
When a
continent
alters
the
direction of surface
currents
.

Coriolis Effect
Global Winds
Global winds
push water
across Earth's surface.

Type: Convection Currents
What do ocean currents transport?


Credits:
http://worldoceanreview.com/en/wor-1/climate-system/great-ocean-currents/


Type: Deep Currents
Energy
Matter

http://www.nature.com/ngeo/journal/v4/n11/fig_tab/ngeo1307_F1.html
http://www.earthlyissues.com/gulfstream.htm
Further Understanding of Ocean Currents
Type:
Surface Currents
Sun POWERS
surface currents

The sun heats the atmosphere
?
?
Fill in the cause-and- effect chart to show how the sun's energy powers surface ocean currents
This is upwelling
Quiz Time!

Multiple Choice
True or False
The Ultimate Question!
1. How do deep ocean currents form?
A. As warm, dense water sinks and flows beneath cold ocean water
B. As cold, dense water sinks and flows beneath warm ocean water.
C. As warm, dense water sinks and flows with other warm ocean water.

2. Surface currents:
A. are wind-driven
B. are the only currents that most people see
C. affect about 20% of the ocean’s volume (total water)
D. all of the above

3. Deep ocean currents are:
A. non-existent
B. wind-driven
C. density-driven
D. Circumpolar

4. Winds and currents are ultimately created by:
A. Equator
B. Sun
C. Moon
D. All of the above

1. The only factors that affect the surface currents are the
global winds and the continental deflections. T or F


2. Ocean currents only transport energy. T or F


3. Surface currents are powered by the sun. T or F


4. Upwelling is part of the formation of surface currents. T or F

5. Wind does not affect ocean currents. T or F


Describe how surface currents would be affected if Earth did not rotate + what the coriolis effect is!
Lab Time!!
Main Question: How do deep currents form (density/salinity)?
Procedure:

1.
Pour water in the Plastic Box until the water has filled the ¾ of the plastic box.

2.
Fill the 2 beakers with 250ml of water (in each).

3.
Add a stable amount of food coloring to both beakers (a different color for each).

4.
By using the third beaker to measure, add 10 ml of salt in one of the beakers and 50 ml of salt to the other one.

5.
Start mixing the salt thoroughly (it will take a while), until all of the salt is dissolved. THIS IS VERY IMPORTANT!

6.
Then pour one of the two beakers , wait a minute, then pour the other carefully in the plastic box.
Reflection Time!
Questions based on observations:

1. Observe the colorful water. What do you see?

3. Why do you think this happened?

3. How is this lab related to deep currents?

4. What did you learn after doing this experiment?

5. Was it helpful or not? Why?


Lauren Rattray
Nikoleta Licheva
Ventsy Yosifov
Minami Fukuda
Despina Chouliara
Full transcript