PIZZA!!

Our AWESOME professor got us pizza for class today!

The pizza's crust is like the Earth's mantle.
The sauce is like the upper mantle.
The cheese is like the oceanic crust.
The toppings are like the continental crust.

PIZZA!!

US Populations in the 1800s (WATER)

What are the similarities between the ten biggest cities in the US in the mid 1800s?

• New York, NY
• Baltimore, MD
• Boston, MA
• Philadelphia, PA
• New Orleans, LA
• Cincinnati, OH
• Brooklyn, NY
• St. Louis, MO
• Spring Garden, PA
• Albany, NY

The only city I don't know on the list is Spring Garden, PA. The similarity is that they are all by water.

Where is water distributed, if you had a $100?

• Oceans: $97.20
• Glaciers: $2.15
• Clouds: $0.07
• Rivers/Streams: $0.0001
• Lakes: $0.09
• Seas: $0.08
• Groundwater: $0.62
• Soil Moisture: $0.05

The Story of a Rock

Our rock is schist. It is a foliated metamorphic rock primarily made up of Muscovite and Biotite. Schist is shiny, has layers, some of the grains can be seen, and some bits of the rock will come off in your hand.

http://u3askyegeology.blogspot.com/

Schist beings as shale. Shale is a sedimentary rock. Once shale has pressure and heat applied to it, it transforms into slate. This is a metamorphic change. The more pressure and heat, the more the rock may change. From slate, the rock morphed into phyllite and then into schist. If the schist were to be placed under more heat and pressure, it may eventually turn into gneiss.

http://imnh.isu.edu/digitalatlas/geo/basics/diagrams.htm

Minerals

A mineral is...

1. naturally occurring
2. inorganic
3. solid
4. have a definite chemical composition
5. have a crystalline structure

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj20L2BpuFhdP4uNEK85WY-MGT63te-qjB8D05XsUaPpNN4VNGk2JLzWjn439ETuHJmj35RaMfxTM4qkTQgHW4WdHrw1gPclYTFeFETTby7C5xjSagIgyNRlGnmkT6iCXFMhql9CvFS-dZ0/s1600/minerals.jpg

Periodic Table and Crystal Gardens

The periodic table is made up of elements. When those elements bond together, they form crystals.

http://straderspiel.wordpress.com/2012/03/19/crystal-garden/

Here's how to create a crystal garden:

1. Place chunks of your substrate (i.e., charcoal briquette, sponge, cork, brick, porous rock) in an even layer in the non-metal pan. You want pieces that are roughly 1-inch in diameter, so you may need to (carefully) use a hammer to break the material up.
2. Sprinkle water, preferably distilled, onto the substrate until is has been thoroughly dampened. Pour off any excess water.
3. In an empty jar, mix 3 tablespoons (45 ml) uniodized salt, 3 tablespoons (45 ml) ammonia, and 6 tablespoons (90 ml) bluing. Stir until the salt is dissolved.
4. Pour the mixture over the prepared substrate.
5. Add and swirl a bit of water around in the empty jar to pick up the remaining chemicals and pour this liquid onto the substrate, too.
6. Add a drop of food coloring here and there across the surface of the 'garden'. Areas with no food coloring will be white.
7. Sprinkle more salt (about 2 T or about 30 ml) across the surface of the 'garden'.
8. Set the 'garden' in an area where it will not be disturbed.
9. On days 2 and 3, pour a mixture of ammonia, water, and bluing (2 tablespoons or 30 ml each) in the bottom of the pan, being careful not to disturb the delicate growing crystals.
10. Keep the pan in an undisturbed place, but check on it periodically to watch your very cool garden grow!

Instructions from http://chemistry.about.com/cs/growingcrystals/ht/charcoalgarden.htm

Geologic Time Scale and Fossils

Geologic Time Scale:

I am ok with the concept of the geologic time scale. I have not memorized the geologic eras or periods yet. I will probably use a mnemonic device to remember them.

Fossils:

I know that fossils can be preserved bones or droppings of an animal, preserved plants, or even footprints of an animal. They can be the actual bones, impressions of the plant or animal, mummified, or petrified.



Amber is tree pitch that has fossilized.



Trace fossils are imprints or indications that life was there.



Fossilized wood is called petrified wood.



Mold and cast fossils.




We created our own "fossils" in a lab experiment and are attempting to dig them out today. I opened the half sand half plaster and used a hammer and chisel to crack open my fossil. I got a good impression left in the plaster and sand and didn't damage the shell. This would be a good mixture to get impressions out of. Another good mixture was the 2/3 sand and 1/3 plaster. It would be good to use if you wanted to get a good impression and have the material soft enough to scrape away for kids. Our other mixture is not easy to use. It was four parts plaster and one part sand. It takes a very long time to scrape away the material, leaving no impression, and doesn't break open easily when using a hammer and chisel.

Geologic Time

Geologic time is a way geologists, paleontologists, and archaeologists use to determine the age of the Earth and the fossils or relics found in the Earth. A geologist uses geologic time to place events in order by time periods. A geologist might also use information from paleontologists or archaeologists to put a time period with the layer of rock they are looking at.

http://www.learner.org/courses/envsci/visual/visual.php?shortname=geologic_time

Geologic time is divided into groups. The groups in descending order of length are eons, eras, periods, and epochs.