1. Today’s Objective(s) Good Morning: Feb 23, 2006
BAT: Define & Describe properties/characteristics of a compound (Progressing)
Summarize “real world” examples for specific compound (Satisfactory)
Design experiment to test or demonstrate properties/characteristics (Mastery)
WILY : Today’s Journal Prompt - covalent bonding – “What’s the connection?”
Materials needed
WILY Folder
Today: Field Notebook
1.) WHAT’S THE BIG IDEA ? Secrets of the Universe list
Valence models
2.) Secret Of the Universe # 5 Intro Sharp Pencil
Notes & Connections Pen/colored pencil(s)
Simple demonstrations
3.) Q&A / Terminology check Handouts
NoteKeeper
4.) Assignment/project selection (Presentation notes available)
Goal
Objective Possible Resources
Assessment http://ga.water.usgs.gov/edu/
Links
5.) Have Selection checked http://water.usgs.gov/education.html
before you leave today ! http://capp.water.usgs.gov/GIP/h2o_gloss/
http://www.noaa.gov/index.html

2. k e y M o u s e is t h e K e y t o L if e in t h e U n iv e r s e H2O
( a s w e k n o w it )
M
H
ost abundant compound
H I
ce Floats
+ + C
lear
ilocalories of energy
K
- E
xpands when frozen
oUniversal Solvent
Y

3. M ost abundant compound
75% of the planet is
covered with MICKEY
70% of you is MICKEY
MICKEY is in the air
MICKEY is underground
MICKEY is into practically everything
Would an alien arriving for the first time really call this planet...
Earth ??! Or would it be ..... Aqua?
Life starts in an aqueous solution.
Challenge:
Life started in an aqueous solution.
Where wouldn’t you find MICKEY?

4. I ce floats
One of MICKEY’s “unusual” properties:
Solid MICKEY is less dense ( see: Secret of the
Universe #4) than liquid Mickey.
Life under MICKEY continues,
even when the surface is frozen solid.
The calving of Icebergs from glaciers “distributes”
freshwater to the marine environment.
Challenge:
What would happen if icebergs sank, building up on top of
one another, year after year after year?

5. C lear
While the angle of incidence affects some solar radiation,
because MICKEY is transparent, light is able to
penetrate the surface.
In MICKEY’s Photic zone, Photosynthesis occurs,
allowing the food chain to begin (and flourish.)
Challenge:
What might the effects on phytoplankton be if MICKEY
Increased reflection / refraction / absorption of light?

6. K ilocalories of energy
As MICKEY moves/changes from one
“state of matter”to another, measurable energy
is involved.
MICKEY is a standard by which we compare/measure energy.
The formula and definition of calorie
Challenge
What energies are involved in a water drop moving through the water cycle?
Or
Where does the energy that drives a hurricane come from?

7. E xpands when Frozen
When MICKEY freezes it expands by almost 10%.
In the winter, melting snow, in the form of MICKEY, seeps
into the cracks and freezes at night, bit by bit prying and
opening cracks, making them ever wider.
This erosion process, frost wedging / frost shattering,
is one of MICKEY’s contributions to “creating” new soil
and releasing “rock-bound” minerals.
Challenge:
What are some of the “civil” consequences/costs of
MICKEY’s contribution to erosion?

8. YoUniversal Solvent
(Hey, some metaphors aren’t perfect)
Almost everything dissolves in MICKEY. Stone,
iron, pots, pans, plates, sugar, salt, and coffee
beans all dissolve in MICKEY.
MICKEY is the great mover; rivers, oceans, underground.....
constantly moving dissolved solutes around the planet.
Things which dissolve are called solutes and
the liquid in which they dissolve is called a
solvent.
Mickey moves dissolved nutrients
from the soil into the plant.
It’s MICKEY’s magnetic personality that does the trick.
Challenge:
Is Mickey’s ability to dissolve solutes affected by
his temperature?

9. Coming up next : MICKEY’s dipolar personality
There is a positive (hydrogen) side
And a negative (oxygen) side
to MICKEY. Like a magnet.
Substances (things with positive and/or negative charges) easily attract water molecules. The water
molecules surround the charged solute; positive hydrogens close to negative charges and negative
oxygens close to positive charges on the solute molecule.
All this interaction suspends the solute molecule in a sea of water molecules; it disperses and dissolves
easily.

10. Notekeeper: Date: _____/ _____/____
What’s the Big Idea?
Sketch/ diagram of _____________________________
_______________________________
Mickey Mouse is the key to life in the Universe
_______________________________
Preview/Predict ? _______________________________
______________________________________________
1.
(intro?)_______________________________________
2.____________________________________________
M
_____________________________________________
I
3.____________________________________________
_____________________________________________
Terminology
ry
Pu up
Lo k it
Ch it
gl t In
sa
ow
ec
ok
C
4.____________________________________________
os
Kn
_____________________________________________
Aqua / aqueous
K
5.____________________________________________
_____________________________________________
angle of incidence
Interesting FACTOIDS Don’t forget !!______________
__________________________ photic zone
Questions to ask:____________
Phytoplankton
_________________________
Frost wedging
_________________________
_________________________ (Continue on back ? [ ] )

11. Continued. Summary / or Three most important things I learned:
6.______________________________________
E
_______________________________________
7.______________________________________
Y
_______________________________________
8.______________________________________
_______________________________________
9.______________________________________
_______________________________________
10:_____________________________________
_______________________________________
Webbing or concept map = matter = Action/energy