Monday, March 25, 2013

Story of a Rock.

Hi, my name Sandy. I am a sandstone rock. The shape of my body is round and short. And I am tan/brown. 



I only have a medium grain size but I wanted to share my story with you, on how I came here today. Well, I started out from a melt. The magma clashed together and cooled down and formed me into a Igneous Rock. Then after that, weathering and erosion happened and turned into sediments. The sediments then turned into Sedimentary rock through the process of compaction and cementation. And that's my life and how I came about.

Friday, March 22, 2013

Simulations / Models / and Analogues.

Simulations: the imitation of the operation of a real-world process or system over time.


Models: A systematic description of an object or phenomenon that shares important characteristics with the object or phenomenon.


Ex: Our crystal formations,


Analogues: A compound with a molecular structure closely similar to that of another.



Igneous: 

https://www.geology.ucdavis.edu/fun/geologyrocks/mondavi.html

 
Metamorphic: Foliate (has bands and stripes) . 

 

http://photoseek.photoshelter.com/image/I0000aNDGKXxR0o0

 A representation:

http://www.blisstree.com/2009/02/10/food/review-nestles-butterfinger-buzz/


Sedimentary:

http://teachmehowtoclassify.blogspot.com/p/sedimentary-rock.html

Tuesday, March 19, 2013

What is a Mineral?

A mineral is composed of many different elements from the Earth.





http://www.web-shops.net/earth-science/Introduction_to_Minerals_Poster.htm

Wednesday, March 13, 2013

Elements: Chemical Bonding: Crystals.

 Today in class the professor wants us to see what we know about the following: 


                                                               Elements: 


                                                Where do they come from? 

Atoms come together to create elements. For example Oxygen mixed in with Hydrogen to create water.


                                                   Chemical Bonding: 


                                  What are the basics of chemical bonding? 

The basics of bonding is when two atoms come together and create other atoms.



                                  What do they form when they bond? 


They form into different elements. 



 Also we are making crystals . . .

                                                        Mrs. Stewart's Crystal Garden: 

http://www.tumblr.com/tagged/crystal%20garden


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

                                                                 What you will need: 


  • Charcoal Briquettes (or pieces of sponge or brick or porous rock)
  • Distilled Water
  • Uniodized Salt
  • Ammonia
  • Bluing
  • Food Coloring
  • Non-Metal Pie Plate (glass is great)
  • Measuring Spoons
  • Empty Jar

Making Crystals.



                                                                        Directions: 
  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!

Tips:

  1. If you can't find bluing at a store near you, it is available online: http://www.mrsstewart.com/ (Mrs. Stewart's Bluing).
  2. Crystals form on the porous materials and grow by drawing up the solution using capillary action. Water evaporates on the surface, depositing solids/forming crystals, and pulling more solution up from the base of the pie plate.

Our outcome: 


What it first looks like.