Thursday, February 24, 2011

Crystal Garden Reflection.

Even though it took me two weeks to grow my crystals because of the small amount of solution I put them and the places I tried to grow crystals on; my crystals did appear in the end. I must say that I learned quite a lot about the process of crystal growing and the way that when the liquid evaporates the minerals are left behind (way cool).

Hypothesis:Because I have grown crystals before I know how they'll turn out but if I hadn't had grown crystals before I would have thought that they would take years to grow and that they would be large and transparent.

Data Analysis:
What material did the crystals grow best on? My number one crystal growing materials were wooden sticks plastic trees and a rock.
What material did the crystals grow the worst on? Painted materials I'm guessing that its because it has a protective layer of thick paint.


What solution was the easiest to grow crystals from? For me it was Epsom salt probably because it evaporates easily and that it was super saturated.
What solution grew crystals the slowest or were the most difficult? For most people including myself it was sugar. On the other hand sugar did grow the biggest crystals in my entire garden.
Which method was the best for growing crystals? Most people either soaked something in crystal solution or filled a container with it.


Conclusion:
What can you conclude about the conditions that are needed for crystals to grow? You need to have a low amount of humidity in the air, you need to have a place for the solution be in or else it will drip and your crystals will not be likely to form and you need your crystal garden to be an open container so that the solution can evaporate. What have you learned about crystals during this project? Crystals a very easy to grow and are a great time saving way to demonstrate the growth of natural crystals. To grow a mineral and water solution crystal you pretty much don't have to do anything other than record the growth of them. Do you have a new hypothesis? Yes, crystals will grow on porous materials, you need supersaturated water (water that has so much mineral in it that you cant put any more) and you need perfect crystal growing conditions such as dry air,open gardens etc.

Further Inquiry: What errors may have occurred in your garden? I left a top on my crystal garden in the beginning i guess that was my only error. How would you change the experiment if you were to do it all over again?I would not change the experiment because it was good but I would change my garden into a crystal growing machine! What further questions do you have about crystals and the conditions they need for growth? Exactly how long does it take real crystals to grow?


Bibliography: I used http://www.mypsciencegrade6.blogspot.com/ for my questions.

I only did my "crystal garden diary" for three days and it isn't so good but anyway here it is:

Day 1:Today I made some more sugar crystals, some salt crystals and some monoamine oxidase crystals. I cant see any crystals yet but I would really like to see some and find out the differences between them.

Day 2:Today I added some Epsom salt to my crystal garden. I also noticed a bunch of salt crystals growing on one of my rocks and it was so cool they were hanging down like red stalactites. I am kind of disappointed because none of my other crystals are growing.

Day 3:Today I noticed that my garden didn't change over the weekend and that it looks exactly the same but Im going to add some more transparent Epsom salt solution to see if I can get some more cool crystals growing.

Sunday, February 6, 2011

Mapping Earthquakes and Volcanoes


Mapping Earthquakes and Volcanoes
Problem
Is there a pattern in the locations of earthquakes and volcanoes?
Yes, there is evidence of this in “the ring of fire” which is an area where large numbers of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean.
There are also various fault lines where a number of earthquakes occur in the same area.
Skills Focus
Interpreting data
Materials
Outline world map showing longitude and latitude
4 pencils of different colors
Procedure
1. Use the information in the table to mark the location of each earthquake on the world map Use a colored pencil to draw a letter E inside a circle at each earthquake location.
2. Use a pencil of a second color to mark the volcanoes on the world map. Indicate each volcano with the letter V inside a circle.
3. Use a third pencil to lightly shade the areas in which earthquakes are found.
4. Use a fourth pencil to shade the areas in which volcanoes are found.
Analyze and Conclude
1.        How are earthquakes distributed on the map? Are they scattered evenly or in concentrated zones?
Most of the earthquakes occur in small clusters or (earthquake prone areas such as fault lines and subduction zones) but there are some very random areas in my opinion.

2. How are volcanoes distributed? Are they scattered evenly or in concentrated zones?
Mostly the distribution of volcanoes is everywhere although there are a number of volcanoes surrounding the Pacific Ocean

3. From your data what can you infer about the relationship between earthquakes and volcanoes?
Sometimes they occur in the same areas and I think it’s because of plate boundaries.
More to Explore
The nearest active volcano to Belgrade, Serbia which is where I live is mount Vesuvius in Italy and it is currently active it has erupted many times before