The mysterious moving liquid:
in chem we observed a mysterious liquid that continuously moves. It was made with with either milk or glue or some white liquid, i am pretty sure that is was milk but what ever. then some food coloring was placed in just a drop of different colors. after a little bit of soap was dropped in and all of a sudden the whole mixture began to move:I can not tell if the science in this is, because its a solution or if its because of its properties so i am going to say that its both a solution and a liquid experiment of some sort.
Monday, May 24, 2010
Mini Project #1
The mysterious play-dough type thing...
In chem we made this mysterious dough like material. it was made with flour and oil or water or something liquid most likely water. we put in food coloring. then it was heated on a hot plate. it smelled pretty bad. after it was done it looked like this: (the thing on my nose :D )
the science here is the fact that we combined different reactants added some energy, to create one product or play-dough type thing. the reactants are the flour water food coloring and heat. the product of course was the play-dough. PEACE OUT!!!
In chem we made this mysterious dough like material. it was made with flour and oil or water or something liquid most likely water. we put in food coloring. then it was heated on a hot plate. it smelled pretty bad. after it was done it looked like this: (the thing on my nose :D )
the science here is the fact that we combined different reactants added some energy, to create one product or play-dough type thing. the reactants are the flour water food coloring and heat. the product of course was the play-dough. PEACE OUT!!!
Saturday, May 15, 2010
Gas Molecules and Pressure Standard 4a
students know that the random motion of gas molecules and their collisions with a surface create the observable pressure on that surface
Pressure= force/area
The speed and amount of gas molecules are what cause the amount of collisions on the surface. The collisions apply force to that surface. The more gas molecules in a container the more pressure, because the molecules take up more space.
The pressure of a gas is the force that the gas exerts on the walls of its container. When you blow air into a balloon, the balloon expands because the pressure of air molecules is greater on the inside of the balloon than the outside. Pressure is a property which determines the direction in which mass flows. If the balloon is released, the air moves from a region of high pressure to a region of low pressure.
Take a soda bottle for example. When you shake the closed soda bottle the carbon dioxide is released inside the bottle. the random moving gas molecules continuously bounce and repel off each other in the small space above the liquid and the surface of the bottle. the force that is applied to each square unit is that amount of pressure that is on the bottle. You can notice that the bottle feels hard.
Friday, May 14, 2010
Field Trip map
View Mills Canyon Map in a larger map
We went on a field trip for our chemistry class. it was really interesting, because all we did was walk through mills canyon. We looked at the beautiful scenery and noticed the chemical reactions taking place
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