Kailey+W+sp2013

=__Two Types of Experiments Extension __= My lab partner and I tried to figure out how far paper airplanes fly with 2 paperclips and without any paperclips weighing the airplane down. We also used 3 different types of paper so we could decide which paper fly’s the best. We decided to do this experiment because in real life humans get on the plane and weigh it down. The experiment we did was a comparison experiment because we are comparing the paper airplanes. This is nota relationship experiment because we are comparing. The control of the experiment was the copier paper airplane with no paperclips. The independent variable is type of paper and with or without the paperclips. The dependent variable was the time in the air. We through the airplanes off the ground and time how long each plane took to reach the ground. When the copier paper flew it went 1.35 on average. When the construction paper flew it went 1.09 on average. When the lined paper flew it went 1.49 on average. When the copier paper with 2 paper clips few it stayed in the air for 0.76 on average. When the notebook paper with 2 paper clips flew it stayed in the air for 0.71 on average. When the construction paper with 2 paper clips flew it stayed in the air for 0.62 on average.

My lab partner and I tried to figure out how long rubber bands would stay in the air getting launched from different angles. The experiment we did was a comparison experiment because we are comparing the time in air of the rubber bands. This is not a relationship experiment because we are comparing. The control of the experiment is 0 degrees on angle. The independent variable is the different angels. The dependent variable is time in the air. We measured the different angles of the rubber bands getting launched and launched them from that angel. We timed them before they hit the ground and recorded it. When we shot from 0 the average time in air was 0.95 seconds. When we shot from 25 the average time in air was 1.3 seconds. When we shot from 45 the average time in air was 1.16 seconds. When we shot from 65 the average time in air was 1.6 seconds.

The problem I was trying to solve was which liquid would be repelled off of t-shirts best using rain-x. The four liquids I used were water, tonic water, sprite, and oil. Water was found to work best followed by oil, sprite then tonic water. I think my experiment went well but I don't think it was the most interesting. An independent science project is really fun and interesting. I think the extension experiments are the best because your first experiment is just finding out about your topic. My first experiment was just finding out which liquid works best on a t-shirt with rain-X. I didn't find out which works best with other surfaces like wood, glass, sand or any others. I really enjoyed working on my independent science project!
 * ISP Reflection **

The career I chose for my independent science project would be a chemist because of all the different liquids used. The job relates to my independent science project because one thing that a chemist had worked on is trying to make a bullet proof. My independent science project was about making a liquid proof shirt. A chemist and I both are trying to create material that is resistant to something. A typical day on the job would consist of different jobs depending on the experiment you are trying to conduct or improve. Some experiments chemists have done are developing, improving, and customizing products, equipment, formulas, processes, and analytical methods. 
 * ISP Job Refection **

=My Model of a Television=





If you divide a still image into a collection of small colored dots, your brain will reassemble the dots into a meaningful image. If you watch T.V. everyday then your brain tricks you every day. This is what's on the T.V. screen. Most people, sitting right up close to their T.V.s, cannot tell as clear what all the pictures are of. The dots are too big for your brain to handle. If you stand 10 to 15 feet away from your T.V, however, your brain will be able to assemble the dots. On the first drawing I didn't include the satellite dish and the picture made of entirely dots.

=__Proving a Rock, Water and Air are Matter__=

Rock:
Should rock be considered matter? The materials we use to try to find out if a rock is matter is a rock, a vial, and a triple beam balance. To find the mass of a rock you should get a balance and put the rock on the balance then shift the weights to the left to have the balance steady weight. To find the volume my partner and I filled a glass beaker to 90 ml then dropped the rock in and the water raised to 94 ml. with the water's mass minus the water's mass with the rock's mass is 4 ml. The rocks mass is 4 ml. Rock is matter.

Water:
Should water be considered matter? The materials we use to try to find out if a water is matter would be water, a vial, and a triple bean balance. To find the mass of water find the mass of just the beaker and subtract the mass of the beaker and water to get just the water. To find the volume you would fill the vile up to any number of ml and that amount of water is the volume.Water is matter.

Air:
Should air be considered matter? The materials we use to try to find out if a air is matter would be a balloon and a triple beam balance. To find the mass of air find the mass of the balloon with no air on the balance and find the mass of the balloon with air on the balance. Then to find the mass of just the air subtract the mass of the balloon with air from just the balloon. To find the volume of the air we guessed the amount of air in the balloon. We guessed about 2,000 ml. Air is matter.

=__Sodium Crystal __=

I created a sodium crystal formula model made of marshmallows and toothpicks. The chemical formula for table salt is NaCl. Salt is any of a class of compounds formed by the replacement of one or more hydrogen atoms of an acid with elements or groups. A crystal is when molecules form together in a definite and repeating pattern throughout the entire crystal. Table salt is considered a compound because there is a metal (sodium) and a nonmetal (chlorine) bond together. Other types of salt are Calcium carbonate, Sodium carbonate, Sodium acetate, Potassium cyanide, and Sodium sulfide.



=__Can you separate sand and salt__=

The first thing done was putting the mixture on a hot plate that was off. Then the mixture was stirred together well. After that the mixture was covered with 10 mL of water. Next the hot plate was turned on to a medium heat. Then stir the mixture until the salt dissolves. After that remove the mixture from the hot plate and let it cool down. While waiting for the mixture to cool down we took a beaker and rubber banded a coffee filter to the top. Next pour the mixture to the filter and let the water and salt drain through the filter while the sand will get caught in the filter. Now you can weigh the sand on a balance. Then put the water back on the hot plate and let the water evaporate. Then you are left with just salt and you can now also weigh that on a balance.

The sand was weighed on a balance in the coffee filter. The number got was 5.3. The coffee filter was weighed to be 2 grams. Then we take the sand and coffee filter and subtract the weight of the coffee filter and get just the weight of the sand (5.3-2.0=3.3). To get the salt we take the slat and beaker and subtract the weight of the beaker and get just the weight of the salt (213-212=1.0). So salt is 3.3 grams and sand is 1.0 grams.