Maddie

= Maddie's Lab Page =

= Labs: = Measurement Volume Mass

In the three labs completed in class, i learned many new techniques. In the measurement lab, we worked on measuring liquid in graduated cylinders, and measured our lockers. Using a meter stick, we measured specific objects to find the volume (length times width times height). We also learned about minimum scale, scale uncertainty, and parallax error. In the volume lab, we worked with mysterious blue and yellow liquids. We poured both substances into different sized graduated cylinders, and eventually mixed them together. In our groups, we worked together to find the water displacement after dropping a small prism into the cylinder. When making qualitative and quantitative observations, we noticed that the mixed substance turned green, and became warmer in temperature. Also, the amount of liquid in the cylinder went from 50 ml to 97 ml. Finally, in the mass lab, we learned that the si units of measurement are grams/kilograms. When measuring an object's mass, we use a triple beam, or an electric balance.

=** States of Matter Movie Notes: **= https://docs.google.com/document/d/1OhUtt2xogMYz3UTzkMm7_PEwQ9m-nq8Ym5FFIPaoWfw/edit?usp=sharing

= Density questions and essay: = = https://docs.google.com/document/d/1ozKC4QU2R77GPVgpOxXOo6KI2BWiBuGbjfDaYvWNPJM/edit?usp=sharing =

= Elements, Compounds, and Mixtures: = https://docs.google.com/document/d/10ZCe4g8OoiwcPvHVxoB2f023jGVnOLQ3tv5b2-6JsKo/edit?usp=sharing

= Energy Movie Notes: = https://docs.google.com/document/d/1EL6h0CYT-F4p9IgcuzjUMEz0HdPJbb29MyBQlZWLINE/edit?usp=sharing

= Cars and Ramps Lab: = = Heat Technology Packet Lab: = Metal- really cold- 21.2 C Wood- cold- 19.8 C  Foam- really warm- 20.6 C  Tile Floor- really cold- 18.4 C  Plastic- semi warm- 20.4 C  Peg Board- cold- 19.2 C
 * We did 3 trials to find the average time, the car took to roll down the ramp. We found that the average time was 2.775
 * We will find the weight of the car, and height of the ramp to get the gravitational potential energy
 * We have to use a triple beam balance to measure the weight of the car, and a meter stick to measure the height of the ramp; using centimeters for units of measurement
 * We measured the mass of the car, and the height of the ramp; compared to the regular table
 * Height of ramp= 0.05(m)
 * Mass of car= 0.0397(kg)
 * Weight of car= 0.3897(N)
 * Potential Energy= 0.0195(J)
 * We will have to find the mass of the car and the velocity or speed that the car travels at
 * We completed 4 trials in order to find the kinetic energy
 * The average velocity is 2.34
 * Mass= 0.0398(kg)
 * Time= 0.43(s)
 * Final Velocity= 0.8548(m/s)
 * Kinetic Energy= 0.0145(J)

The temperatures were similar. Hands do not measure temperature well, hands measure heat. Heat is the transfer of energy between objects that are different temperatures. Thermal Equilibrium is the point at which two objects reach the same temperature. The objects in the room are at a thermal equilibrium with the air in the room.

= Experimenting With Water Lab: = https://docs.google.com/document/d/1SwCgXy5KEy_q83V2yCBlTDzXK7Y7JeEDV-SnlE26wfI/edit?usp=sharing

12/19/13: For the water lab, the mixed water temperature was about the average of the cool water temperature, and the hot water temperature. For our table, we were very, very close to the average, but for most tables, the mixed water temperature was a little lower than the average.

= Heat Project Notes: = https://docs.google.com/presentation/d/11p_sqwgdhB-n7fCGWKaMueee7Y4XGsM6cbBlifLN40E/edit?usp=sharing

= Energy Resource Notes: = https://docs.google.com/presentation/d/1AWztgEg-DrajAHgYUNVjisM6Ehxbcc4sLgXBNF0ZIW4/edit?usp=sharing

= Board Experiment Response! = Every direction and side that we rolled the marble from, was completely different each time. The marble came out in unexpected ways each time as well! However, I noticed a pattern. The marble bounced off of the anonymous object, in a triangle shaped path for most of the time, but it also rolled/bounced off of the object under the board in straight lines as well. The object seemed to be close to the middle of the board, far from the top, relatively far from the right, close to the left, and far from the bottom! There were different outcomes, with each roll.

I think that the object beneath the board, is a wooden square. By looking at the way the marble bounced, or rolled off of the hidden shape, the path that the marble took kind of formed a square-like shape. I think that the object is most likely wooden because the marble made clinking sound when hitting the object, that didn't sound like the an object hitting metal. The square seemed placed in the middle(under the board) since it was far away from the marble when rolled from certain sides, like the top, right, and bottom. The object was probably placed relatively closer to the left side, after looking at my results.

= Chemical Families: = My chemical family, is the metals. I have also heard of metalloids, non-metals, noble gases, transition metals, alkaline earth metals, liquids, and solids.