1. Update table of contents Pg. 111 – Water Cleaning System
Standard
M&I-1
I can utilize properties of matter to differentiate and identify substances
Entry Task
Update table of contents
Pg. 111 – Water Cleaning System
Learning Target
How do we separate the substances in a mixture?
Homework:
Complete first page of Engineering packet

2. Substances here all have boiling points above the boiling point of water
Carmel color
Corn syrup
Etc..
Substances here all have boiling points at or below boiling point of water
Water
Flavoring

3. Conductivity of LiquidsNo
Yes No

4. Water is boiled, the gas is captured and then cooled back to liquid in a separate container
Contaminants do not go out with the boiled water
Distilling
Takes energy
Anything with a lower boiling point will still be in the water
Takes the larger contaminants and those with charges out
Filters have different sized holes that do not allow unwanted stuff to get through.
Filtering
Anything that is smaller than the hole gets through

5. Heavier substances fall of the mixture
Sedimentation
Heavier substances fall of the mixture
Magnetism
Substances that are magnetic can be taken out with a magnet
Substances hit their boiling point, turn into a gas and are condensed in another location
Distillation
Less dense substances float
Density

6. You must design and build a system that produces pure water.

7. 110
111

8. Criteria You need to produce a sample of pure water
Six substances have to be separated from the water and put into individual piles: salt, BB’s, sand, plastic beads, paper and rice –You will have 30 minutes.
This is a competition: the group that produces the greatest quantity of clean water in 30 minutes, will win.

9. Rice BB’s Salt (soluble) Sand (insoluble) Plastic Paper
Pure water
Rice
(organic material)
BB’s
Salt (soluble)
Sand (insoluble)
Plastic
Paper

10. Criteria Constraints You need to produce a sample of pure water
Six substances have to be separated from the water and put into individual piles: salt, BB’s, sand, plastic beads, paper and rice –You will have 30 minutes.
This is a competition: the group that produces the greatest quantity of clean water in 30 minutes, will win.
You may only use the materials provided
Each substance must be separated using a different process
Fingers or spoons cannot be used until the substance has been separated from the others
Your design must be ready on May 17th

11. Hot Plate
Graduated cylinder
Small beaker clamp
Beaker stand
Magnet
Small beaker
Filter
Spoon
Beaker
Large Beaker clamp
Screen

12. Today Successful groups split the work up.
Separating substances
Distilling and collecting water
Work on the first page of the packet and begin brainstorming ideas.
You will only have tomorrow to practice your systems.
Tonight finish first page
Write up due Tuesday