group+7+mp2


 * [[image:http://www.wordle.net/thumb/wrdl/4688672/Untitled width="192" height="144" align="center"]]

=** __1/9/2012 Toy Car Lab__ **=

__**Conclusion From Lab**__

= **This is a diagram of what was happening in the experiment:** =

This Is Our Data That We Got (#) ||= Mass (g) ||= Weight (N) ||= Height (m) ||= Potential Energy (J) || (#) ||= Distance (m) ||= Time (sec) ||= Mass (Kg) ||= Kinetic Energy (J) ||
 * = Trials
 * = 1 ||= 0.0415 ||= 0.415 ||= 0.09 ||= 0.04 ||
 * = 2 ||= 0.0 415 ||= 0.415 ||= 0.93 ||= 0.03 ||
 * = Trials
 * = 1 ||= 0.91 ||= 1.91 ||= 0.0415 ||= 0.02 ||

**Formulas Used:**
Potential Energy - Weight x Height Example of Calulation: PE= 415N x 93M = 0.038595 ~ 0.04 Kinetic Energy - Mass x Volume (squared) Example: .94 (squared) x 0.0415 / 2 ~ 0.02 Velocity averge: distance / time Example: .91/1.94~47 Velocity final: 2 x Vavg Example: .47 x 2 ~ .94

Percent Differnce: __Potential Energy - l<__ x 100 Potiential Energy(orginal)

__**1/16/2012 - 1/24/2012 Energy Efficiency Project**__ We think that we should make a letter/petition to the governor. It would say things about how to use energy more efficiently and using more natural forms of gas to power cars. We could also talk about how we should find different sources of energy to power our homes.

1/27/2012 Oil Spill Lab: A lab that was done when a web-chat with a person that told us about oil spills materials used: photo case with oil in it ~ a hole in the lid container of water Magic sand- different colors ( are group had pink) a thick piece of rope or string material (booms) Experiment: What we did was make an oil spill and try to clean it up. When we put our photo container with the the oil, it made bubbles in the water. They were small oill bubbles. Next, we used the rope or boom to try to move the oil to one place and get some of it out of the water. It did not work that weell. Then, we put the magic sand in the water. The sand was just sinking in the water turning into blobs. It was a very full experiment that we had fun with. Doing this lab shows that it is not completely easy to get oil out of water like the ocean. It can take weeks to months to contain almost all of it depending on how bad the oil spill was.

2/1/2012 Lab Demintraion with Green Liquid: Observations:
 * A Kelly green color
 * The liquid could be a solution
 * There is a rubber stopper to stop the liquid fron coming out
 * It is uniform- same thorught out
 * Homogeneous- can not see indivial particles
 * It is transparent
 * Can go through a filter

How to filter: 1. Fold filter paper in half 2. Fold in half again 3. Put finger underneath one flap to make cone shape 4. Put in the funnel 5. Put the funnel with the paper in the test tube 7. Wet paper with one drop of substance 8. Then, pour the rest of the substance in filter so it does not over flow

This is a digram of what is looks like:
After Done experiment:
 * Compound/nonmetal
 * has filtrate- same as orginal
 * the filter paper is stained a ugly faint green golr
 * The soultion when thorugh the paper, comes out in tiny drops though the filter

Conclusion: The green liquid was a soultion and made up of water and green flood coloring. You could tell it was a solution because solutions are transparentaand are uniform. They are made up of all the particle thorughout the substance.

2/2/2012- 2/3/2012 What happens to different materials when placed in water? Material using: Copper ll sulfate Sulfur Zinc Oxide Sucrose Tang

Hypothesis that our group came up with; The zinc will not dissolve and will be a collid. The sucrose will dissolve and become a solution. The tang will fizz, then dissolve making it a solution turnnbing the water an orange color. The sulfur will not dissolve and beome a suspension and clump together. The copper II sulfate will not disslove and will become a suspension.

Independent Variable: The material being used = Trials = || = 7 = || = 7 = || = 7 = || = 7 = || = 7 = || Dependent Variable: The mixture that it will make solution,suspension, and colloid)
 * = Level = || = CuS04 = || = Tang = || = ZnO = || = C12H22011 = || = S8 = ||
 * = Repeated =

Constants: 0.5g of solid, 10 mL of water, Filter, same temperature, same filter paper

Producere Digram



Next we did research on the different materials. We found of they we toxic or harmful when being used.:

Copper ll sulfate
 * mixture
 * had a blue color
 * Chemical compound formula: CuS04
 * made with oxygen
 * Exists as a series of compounds that differ in their degree of hydration
 * used for fish tanks, and controls bacteria and parasites
 * Harmful by inhalation or ingestion, and cause dermatitis with prolonged exposure.
 * Can cause skin and eye irration
 * toxic to aquactic organisms and may cause long term damage in the enviroment

Tang-
 * not harmful
 * many ingredrents: sugar, fructose, and citric acid
 * has an orange color
 * The ingredrents is its chemical formula

Zinc Oxide
 * Chemical formula is ZnO
 * It is not harmful
 * It is a white powder substance

Sulfate unharmful only in its organic form Sucrose:
 * explosive and flammable
 * Formula : S
 * made for matches and insecticides
 * A white powder substance
 * Is not harmful to people
 * It is ment to be eaten
 * It is a form of sugar

Measuring the Mass of Solid Example: paper1.1 + 0.5g = (set balance) (1.06g) 4. Add solute to the paper until it balances (solute= material that will dissolve)
 * 1) Zero the balance
 * 2) Mass the weighing paper
 * 3) Add 0.5g to the mass of the paper and set the balance

Check List to defind each material
 * transparency/opacity-can't see through
 * Homogeneous or heterogeneous
 * Goes through a filter
 * uniformity

Things to remember
 * 1) Dissolves and forms a solution
 * 2) Insoluble, but forms a colloid
 * 3) Insoluble, but forms a suspension

Here is a table of the data that we collected can't see the particles, but not completely see through All of the powder is at the top || a faint blue color see through || yellowish/orangish color || white color Looks like milk can't see through it || see through-uniform faint cloudy look transparent homogeneous ||
 * Materials || Observations ||
 * Sulfur || Suspension
 * Copper II Sulfate || solution
 * Tang || Solution
 * Zinc Oxide || Colloid
 * Sucrose || Soltuion

Indirect Observations:
Key Words:

-Manipulation -Observation -Inference

We rolled the marble straight through each side and found that 3 of the sides came right back without coming at an angle. On another side, we rolled the marble at an angle, and it bounced back at an angle. When we rolled the marble straight through the 4th side, it got stuck. We guessed that there could be two sides that have angles to them, and the other two sides could have an angle to them. We also guessed that the shape underneath the board could be a rhombus, pentagon, or a hexagon. After our trials, we found out that our shape looked like this: