1. Pg. 30 RTW: What does “thermocline” mean?
Monday, October 2
Pg. 30 RTW: What does “thermocline” mean?
Objective: I will understand the process of desalination and design a successful desalination prototype.
Agenda:
Discuss the process of desalination
Design a prototype
Homework:
Study for test Friday!

2. Water Desalination Plant
Obtaining reliable fresh water supplies from challenging water sources
Pg. 33

3. Natural & Man-made Processes
Water Cycle
Thermal Desalination Process
Sun heats water in oceans, lakes, streams...
Water evaporates
Water condenses to form clouds
Rain falls back to the Earth
Hot plate heats water in desalination plant
Water evaporates
Ice forces vapor to condense
Water is collected in plant

4. Desalination Plant Please write & answer these questions on pg. 33
What is desalination?
How much does it cost to filter 1 cubic meter of water ?
What do they need to add to the water?
Why do you think Israel has one of the largest desalination plants?

5. Your Objective Design a desalination plant
Use a saltwater circuit to test the efficiency of the plant
Improve the design until the plant reaches the design specifications
Using the Saltwater Circuit to Test Efficiency:
After water has been collected, students should use the saltwater circuit and the collected water to test the efficiency of their plant. If the light bulb on the circuit turns on then the water has too much salt in it and the plant is not efficient. If the light bulb does not turn on then the plant was able to remove the salt from the saltwater mixture.
Design specifications: Your plant should be able to significantly remove the salt content from a saltwater mixture. We will test you plant using the saltwater circuit.

6. Engineering Design Loop Steps
Understand the need Brainstorm designs Select a design Build a prototype Test Improve the design
Engineers look for opportunities in problems society faces
Generate ideas on how to address the identified need
Pick the most promising design or combination of designs
Build your design
Find out if the design meets the design specifications
Make improvements to reach or exceed design goals

7. Get into a group of 3 people
Tin can
Hot plate
Salt water
Ice
Aluminum foil
Plastic wrap
Small cups (paper/plastic)
Large cups (plastic)
Pipe cleaners
Duct tape
Yarn
Plastic tubing
Paper clips
Straws
Get into a group of 3 people
On paper, draw out a model that labels all of the components of your desalination plant design.
Describe how the process will work.
If you need any supplies other than what’s listed, you may request them on the paper up front or bring it in tomorrow (not guaranteed, though)

8. Tuesday, October 3
Pg. 30 RTW: Match the process with the correct change in state or definition.
Evaporation
Precipitation
Transpiration
Condensation
Liquid to gas
Gas vapor to liquid
Liquid that returns to the earth’s surface
Vapor that enters the atmosphere from the leaves of plants

9. Tuesday, October 3
Objective: I will understand the process of desalination and create a successful desalination prototype.
Agenda:
Create your prototype
Homework:
Study for Test Friday!

10. 1. ) Bags up front 2. ) You need your blue packet and a pen/cil 3
1.) Bags up front 2.) You need your blue packet and a pen/cil 3.)Set up your experiment Put the hot plate on high and the can on the hot plate

11. Wednesday, October 4
No RTW
Objective: I will understand the process of desalination and create a successful desalination prototype.
Agenda:
Test your prototype
Homework:
Study for test Friday!

12. While your design is being tested:
Fill out index card with team name & names
If there is something inside your can sketch it out on your index card
You will walk around to other groups and answer the second page
When done, answer the back page and return to your experiment

13. Clean up Ms. D’Ambrosio will take the can off the burner
CAREFULLY disassemble the experiment
Pour water down sink
Save the
Can (rinse out with fresh water & place on cart)
Tubing (Place this on front table)
Throw out everything else

14. Do you think thermal desalination is a viable solution to fresh water shortages? Why or why not?

15. Thursday, October 5
Pg. 30 RTW: What could be some negative impacts of thermal desalination?
Objective: I will understand the process of desalination and create a successful desalination prototype.
Agenda:
Reflect on your design and the desalination process. Complete all of the packet
Turn in Desalination packet
Review
Homework:
None 

16. Objective: I will understand the current patterns of the ocean.
Friday, October 6
Objective: I will understand the current patterns of the ocean.
Agenda:
Unit 3 Test (Properties of Water & Desalination)
Homework:
None 

17. Bags up front You need your clicker Honors- sheet of paper and pen/cil for short response