Science Buddies: "Ask an Expert"

To whom this may concern:

Hello, my name is Sha'Kera Rodriguez and I am a Junior at West Mecklenburg High School in Charlotte, NC. I have been assigned a chemistry project in which I don't understand. I have been asking my teacher to go over this for the longest but it slips his mind and my time is running out. I really need help on this project, I pay attention in class but things don't quite connect just yet. So maybe you can help me..........please........

Okay,

Honors Chemistry 1st project:

Objectives: Find an example of a very large and very small number that has a REFERENCE for a physical or chemical property of matter. The largest value obtainable and another reference value for the smallest number you can obtain for a property of matter. You must have two referenced values.
The project must include 250 words describing in factual detail the values researched in the project. Write up your own research of the information and provide the published reference sources. The printing of web pages is prohibited.

keragirl wrote:


Honors Chemistry 1st project:

Objectives: Find an example of a very large and very small number that has a REFERENCE for a physical or chemical property of matter. The largest value obtainable and another reference value for the smallest number you can obtain for a property of matter. You must have two referenced values.
The project must include 250 words describing in factual detail the values researched in the project. Write up your own research of the information and provide the published reference sources. The printing of web pages is prohibited.

Hi Sha'Kera!
The assignment seems a bit ambiguous. I would suggest first researching about the physical and chemical properties of matter. Here's a helpful website:
http://nobel.scas.bcit.ca/chem0010/unit ... erties.htm
I would assume that your teacher would like you to research some values for properties such as boiling point, solubility, density, etc. This link may also be helpful, it is actually part of the Reference Tables for an exam in New York.
http://www.nysedregents.org/testing/ref ... f10-12.pdf
Hope it helped, good luck!

Unfortunately, from the wording of the project you need to do your own research on this.

From what I can tell from the post he's looking for units of measurement suitable for a very large object, such as a star or a black hole, and units of measurement suitable for a very small object, such as an electron or perhaps the atoms that make up a crystal structure.

Numbers by themselves don't tell you anything about scale. It is a number combined with a unit of measure that matters.

For example, I can describe my height by "a bit under 2" or "over 6" or "75" or 190, and they all refer to the same height. It's just that one is in meters, the next in feet, the next in inches, the next in centimeters.

Inches, meters and feet are suitable for "human scale" things, but not suitable for very small or very large objects.

I'm not sure if this helps, but maybe these thoughts will point you in the right direction.

Thanks.......

My teacher is suppose to be giving us the answers tomorrow.....

So hopefully I can send these answers to you and you can let me know where I need to go from there.