mp3+p1g2

Hi We Are Group 2!!!!!=] Jordan, Briana, Kristina, and Kyle

Elements: Hey guys! I'm Carbon. I LOVE to write and hang out with most jewelry. Also, I enjoy helping to clean the air. While I can be of much assistance to humans, I can also be deadly. Whenever Nitrogen comes over, we form cyanide, which is a deadly poison. I also combine with Oxygen to form carbon dioxide, which, when frozen, forms dry ice.

Hi! I'm Chlorine. I have many uses. In world war one I was used as a poison gas. I'm used as a germ killer swimming pools. I'm used in bleach and plastic pipes, as well as insecticides. I used to be used in air conditioners and refrigerators, untill it was discovered that I am a pollutant. Hello there! I'm Platinum. I love to hang out with the jewelry. I'm used in refining oil, dental instruments, ceramics, and other electrical industries. I'm also used in glass tubes and bulbs. I'm also used in pacemakers for the human heart. Along with thin sheets to make missiles, razor blades, car parts, and my platinum compounds treat cancer.


 * Name of Chemical || Makes a Solution || Observations ||
 * zinc oxide || No || transparent, light blue, uniform, crystals at bottom ||
 * copper sulfate || Yes || opaque, white, uniform ||
 * sucrose || Yes || transparent, non-viscous ||
 * sodium chloride || Yes || transparent ||
 * sulfur || No || yellow, powdery, not uniform ||

__**CHEMISRTY UNIT**__

Kristina: I hope we mix chemicals, but I hope that we don't cause a really bad reaction! I hope that we will see some **big** chemical reactions!!

Jordan: I hope that the chemicals we mix dont cause a big reaction. Mixing chemicals is a fun thing but i hope nothing with go wrong and then we see pretty colors!!

Briana: I hope we mix chemicals together and find out what makes them change color.

Kyle

January 14th,2008(scroll down for answers) 1.What is specific heat capacity? 2.What is the formula for turning Fahrenheit into Celcius? 3.What is thermal equilibrium? 4.What is thermal expansion? 5. Whats the difference between conduction and convection?

Answers: 1. The amount of energy needed to change the temperature. 2. C= 5/9(F-332) 3. When two object reach the same temperature. 4. The increase in volume due to the increase of temperature. 5. Conduction is through direct contact and Convection is by the movement of a liquid.

January 17th, 2008 Review Questions: Chapter 1: Vocabulary Physical Science: The study of matter and energy. Scientific Method: A series of steps that scientists use to answer questions and solve problems.

January 22nd,2008 Energy- the ability to do work Two types of energy: Kinetic Energy-the energy of motion(speed and mass) Potential Energy- energy an ovject has because of its position or shape(weight+weight) Various Forms of Energy: Thermal Energy- total energy of particles in an object Chemical Energy-energy of a compound that changes as atoms are rearranged-potential Electrical Energy- energy of moving elctrons-kinetic Sound Energy-caused by an objects vibrations Light Energy- produced by the vibrations of electrically charged by particles Nuclear Energy- the energy associated with changes in the nucleus of an atom.

January 24th, 2008 Energy Resource-a natural resource that can be converted by humans into other forms of energy in order to do useful work. -The distinguish between nonrenewable and renewable resources is that nonrenewable resources is a natural resource that cannot be replaced or that can replaced only over thousands or millions of years Fossil Fuel-is a nonrenewable energy resource that forms in Earth's crust over millions of years from the buried remains of once-living organisms.

January 31st, 2008 Renewable and Nonrenewable Energy Resources:

Renewable: -Solar -Hydroelectricity -Wind -Geothermal -Biomass

Nonrenewable: -Fossil Fuels: -Coal -Petroleum -Natural Gas -Nuclear: -Uranium

February 7th, 2008 Finding Energy


 * height of ramp (m) || length of ramp (m) || mass of cart (kg) || weight of cart (N) || time #1 (s) || time #2 (s) || time #3 (s) || average time (s) ||
 * 0.35 || 0.9 || 0.0345 || 0.345 || 0.78 || 0.53 || 0.87 || 0.727 ||

Average Speed- 1.238 m/s Full Speed- 2.476 m/s Kinetic Energy at the Bottom: 0.106 J Gravitational Potential Energy at the Top: 0.012