Savannah+L+sp2013

=Two types of experiments Extension=

Two types of experiments extension

The purpose of the paper airplane experiment extension was to see which kind of airplane flied farther. I used three different types of airplanes, the Eagle, the Basic and the Dart. This was a comparison experiment as I needed to compare the airplanes to each other by testing them. Our control was the Dart because that was the type of airplane we used in the last experiment with the paper airplanes. The independent variable was the different types of airplanes since that was the thing that affected the dependent variable which was the average distance the airplanes flew. The way we tested this experiment was that we would fly each airplane three times and then use the average to compare. The results of this experiment was that the Basic was the worst at an average of 160.7cm and the Eagle worked the best at an average of 657.6cm. The purpose of the rubber band experiment extension was to see how long a rubber band could stay in the air when stretched at different lengths. I used the stretch lengths 7cm, 10cm, and 15cm. This was a relationship experiment because it used a scatter plot to graph the data which is used for a relationship experiment. The control I used was 7cm. this length is about the average length a rubber band is stretched when tying your hair. Since an independent variable affects the dependent vaiable, my independent variable was the different stretch lengths and my dependent variable was the average time in seconds that it stayed in the air. The method my partner and I used was that we tested each length three times and then calculated the average to see which length was allowing the rubber band to stay in the air the greatest amount of time. The results were that the stretch length 15cm allowed the rubber band to stay in the air the longest at an average of 1.583sec. Second was 10cm at an average of 1.387sec. Last was 7cm at an average of 0.473sec. The problem that I was trying to solve was which eggshell was stronger. Surprisingly, the brown eggshells were actually stronger than the white eggshells. I think the data to some of my extension experiments were not very accurate, but other than that, I thought my experiment was useful. I liked the independent science project. It was fun getting to choose your own topic that interested you instead of having the teacher pick for you. Choosing the topic for me was hard. I could not decide what to do. There were so many interesting things to choose from! During the science show case, I was very excited to see all the interesting projects other students had done.Overall, I thought that this was a fantastic project to have worked on.
 * ISP Reflection**

Isp Job Analysis A job that relates to my ISP project is a food science technician. A food science technician studies food in many different ways. This job relates to my ISP because I studied eggs for my experiment. Someone in this career would create a new kind of candy bar and mix ingredients together to make a tempting salad dressing. on a typical day, someone in this job would conduct standardized tests on food, beverages and additives.



My Models

The models before and after my research did not change that much. The two models still had the same outline with a cape, a jar, buttons, a knife and a base. My second model after the research included a seal ring though. It is the part that separates the jar from the base. Also, my second model included measurements on the jar and had a different knife shape that my first model. Another difference between the two are that the thing that rotates the knife was different. The first one had a ring, but the second one has a screw rotating the knife.

Are rock, water and air matter? Rocks/ solids To prove that a rock was a matter, my group had to prove that a rock had volume and a mass. We used a graduated cylinder, a triple beam balance, water and a rock. In order to find the volume, we dropped the rock into a 50ml container of water and measured how much the water rose up after the rock was inside the water. Then we subtracted 50 ml from the amount that the water rose up to. My group found that the volume of the rock was 5 cubic cm. To find the mas of the rock, we used the triple beam balance and found the mass. The mass of the rock is 13.5 grams. Proving Water is matter To prove water was matter, my group also had to find the volume of water and the mass of water. We used a graduated cylinder, a triple beam balance and water. First to find the mass of the water, we first measured the mass of the cylinder on the triple beam balance and then filled it up with water and measured it again. Then we subtracted the mass of the cylinder from the water in the cylinder to find just the mass of the water. The mass of the cylinder was 98.7 grams. With the 50ml of water, the mass went up 47 grams. The mass of the water is 47 grams. To find the volume of the water, we filled the cylinder with water up to 50ml and that was the volume. Is gas a matter? My group proved that air is a matter. We used a balloon, a triple beam balance, cubes and air. First, to find the mass of air, we first measured the mass of the not yet blown up balloon on the triple beam balance. Then one of us blew the balloon up with air. We measured the mass of the balloon and the air on the triple beam balance. To find the mass of just the air, we subtracted the mass of just the balloon from the mass of the air and the balloon. The mass of the air was 0.6 grams. To find the volume, we blew the balloon up again and used the cubes to find the length, the height and the width of the balloon. By multiplying the measurements altogether, we had the volume of a rectangular prism. Since the balloon was a circular object, we had to estimate and take away from that number to get the accurate volume of air. The volume of air is 7,342 milliliters.

Table Salt-- a soft light powder full of engaging facts
As a flavoring food resource, table salt is a daily life used substance. Do you know what makes something a salt though? Well, salt is an ionic compound. A compound is composed of two or more different atoms. An ionic compound is a special type of compound consisting of at least one metal and one non-metal atom. In salt, the metal atom is sodium and the non-metal part is chlorine. The chemical formula of table salt is NaCl. Table salt comes in a crystal, a solid substance that has a geometric shape. A salt crystal is the solid form of an ionic compound. Salts come in many different kinds, like Epsom salt, kosher salt and sea salt. Even though salt just looks like some white powder, but when you dig deeper, one can find many fascinating facts about salt.

How to separate salt from sand

In this project, our goal was to separate the salt from the sand when the two were mixed together. First, my partner and I added water to the mixture of salt and sand, and waited until the salt dissolved. Then, we filtered the sand into a beaker and evaporated the water from it. Once the sand was dry, I weighed the sand and the beaker together. Then, we measured the weight of the beaker. Next, we subtracted the weight of just the beaker from the sand and the beaker. This way, we would only have the weight of the sand. To get the weight of the salt, we evaporated the water from the salt so that you just have salt. Then, my partner weighed the salt in the beaker and then weighed the beaker by itself. Again, we subtracted the weight of the beaker from the weight of the beaker and the salt. This is how we got the weight of the sand and the salt.

This method we made worked. Using this method, we found out that the salt weighed 4.7g while the sand weighed 2.4g. In the future, to make the process faster, we could have added less water to the sand and salt mixture so that it would not have taken so long for the water to evaporate on the hot plate. Also, we could have used the same sized beakers to contain the salt and the sand. This way, we would not have had to weigh 2 different beakers which was time consuming. Overall though, this method that we used was a success.

