I thought I knew about matter and energy, But there's a lot more to it when you convert matter a lot energy. I didn't particularly find this video engaging but It did teach me thing that I didn't know. I don't think this video was really supposed to be fun or anything it just made me not want to pay attention or learn anything. But working past my boredness I did learn what I thought was interesting stuff. Such as The greenhouse effect I thought was interesting and I didn't know that at 2:34 in the video I learned that most of the energy from the sun Is being bounced back out when it reaches the atmosphere or the greenhouse gasses. The energy that's left hits the earth in which the earth absorbs it and sends it back out again but the green house gasses bounces some of it back at earth again. Also at 9:40 in the video he addresses the difference between mass and wight, he explains the on earth your mass and weight are the same on earth because of the gavrity. But If you go to the moon or any different plante really than your weight will be different but your mass will stay the same, your mass always stays the same. These two things are the things that really stuck with me because I thought these two concepts were interesting.
(^^not my picture^^) In this lab my group and I tried to make liquid magnets, and sadly it didn't work.
We used these material in which we found online:
(http://chemistry.about.com/od/demonstrationsexperiments/ss/liquidmagnet_2.htm) When Researching this lab we thought It would be really cool, Beside the fact that there are many safety protocols like wearing safety glasses, gloves, lab coats, and using a fume hood. The reason Why we had to suit up was because There was a risk that it could stain our skin and clothes. When we started this lab we didn't take into account of how long it would take so we ended up running out of time and had to do over the time span of two days. I think this is probably why it didn't work. We think that because we didn't have enough time to heat up the ferrofluid and waited till the next day to do it it dried out too much and lost its chemical reaction. We really wanted it to work because we thought it would be really cool and interesting to experiment/play with but without touching it because its toxic. We could however, put it in a glass container to separate it so we could put a magnet up to the glass which the ferrofluid would be attracted to and that's how we could play with it. I would want to do this again and to have more time to work on it in class. I would do this by staying it at lunch or asking my next period teacher if i could stay and work on it. Mira Thomas
Smells Claim Paragraph Smells determine a lot of thing in our daily lives, like foods we like and want to eat, alert us from danger, and even who we are attracted too with. The things we smell are made up with molecules and similar smells either have a molecule structure that looks alike or there is a base smell such as with citrus foods. For example, when you smell lime you’re not only smelling the lime molecules but you are also smelling orange molecules. However, when you smell a lemon it does not have a base of orange molecule like the lime, instead the orange and lemon molecule structures are arranged alike. In this lab we constructed molecule structures. We used Tooth picks as bonds, raisins as hydrogen atoms, and gumdrops as all the other atoms. We were given a sheet with compounds with both inorganic molecules and organic molecules and we had to create what we though the right structure was. These are the ones that my group and I made. INORGANIC MOLECULE STRUCTURES S2H ORGANIC MOLECULE STRUCTURES This activity that we did was a difficult at the beginning because we where just trying to put them together without considering the electrons. However when we started working on figuring out how many electrons each atom had it got easier. We learned that each atom wants to be as stable as possible so the bigger atoms take other atoms (like hydrogen) to get 8 electrons.
We picked our rocks that we wanted to polish and we researched them. The rock that I picked was called labradorite, as shown down below.
"Labradorization is the peculiar reflection of the light from submicroscopical planes orientated in one direction (rarely in two directions) ; these planes have never such a position that they can be expressed by simple indices, and they are not directly visible under the microscope."
In class we made bottle rockets. To make the rocket we used these materials...
5C12H22O11 + 48KNO3 26% or 337g 74% or 101g To make the body of the rockets we got a dowel and folded a paper to wrap around it, and then we taped the paper and cut off the access. The rocket was around 2 inches, after we took the dowel out we took aluminum and made a cap for our rocket. For the fuel we mixed 337g of potassium nitrate and 101g of sugar together. we packed the fuel in the body then added more aluminium and pounded that in to make another cap like thing. Then we folded the end and taped it off. Then we drilled a hole in the foil until we saw the powder, and then you can put the fuse in. after that you get a thin, long dowel and tape it to the rocket. meand my partner Micha's rocket was one nes that actually worked. It wasn't the best one sadly but it went further than most of the other groups. It was funny cause our rocket looked really sloppy and yet it was one of the ones that worked. I thought that it wasn't going to work and i as pleasantly surprised when it did. In class we learned about ionic compounds and the key concepts of hydrophobic and hydrophilic. Ionic compounds are basically defined as being compounds where two or more ions are held next to each other by electrical attraction. One of the ions has a positive charge which is called a cation, and the other has a negative charge which is called a anion. Cations are usually metal atoms and anions are either nonmetals or polyatomic ions (ions with more than one atom). Its the same thing when two magnets stick together. hydrophobic having little or no correspondence with water. And hydrophilic means having a tendency to mix with, dissolve in, or be wetted by water.
In class we did a lab and we tried to make magic sand, That means that we tried to make the sand water proof. By making the sand water proof were separating water and sand so they do not mix, just like how oil and water doesn't mix its basically the same thing. by using silicon we gave the sand hydrophobic properties. When doing this project we learned that you cant just do it real fast and be lazy, scince are group didn't really take our time our sand didnt stay hydrophobic and went back to hydrophilic. Over all this expiriment didnt really go how we planned, but we did learn alot. My group and I built a solar oven with a giant magnifying glass. We where going to bake cookies with it but sadly when we tried it it didn't work, I'm not sure why. We used a giant magnifying glass so there were potential that it could blind some one if no wearing protective eye wear. the reason why cooking with a magnifying glass works is because with a magnifying glass, you are concentrating the energy of the sun the area of a lens into a single point. That is sufficient to raise the temperature of a single point high enough for a chemical reaction to occur.
my group and I where really excited about this project and bummed out when it didn't work. We think we didn't do enough research for it and we didn't do something right. We didn't have any trouble with building or anything but when we had to bake the cookies it didn't work. one reason it might of not of worked is because the positioning of the magnifying glass was not right and the point made with the sun rays was not hitting the pot. It also took us a long time to actually do this experiment, This is mostly because one of us was always absent. Then when we do actually do it it doesn't work. you could imagine our disappointment but it was probably our fault for not researching enough about it. |
AuthorIm Mira Thomas and this is my 10th Grade Archives
June 2015
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