Today in class, I was the heat lab with Taryn and Lucy. We had to make a heat shield to protect our 'rocket' from the flame of a porpane torch. The 'rocket' was a screw attached to a stick with some glue. The stick was then attached to the worktable with some sort of device. I don't know what it is called. The point of the project was to keep the glue from getting hard for a long time. When the glue heated up enough, the 'rocket' would fall on the table, and then we would write down how long the 'rocket' stayed on the stick.
So our first trial had foil, a nut, some mesh, and then the rocket. It last 11.94 seconds. We hadn't thought of a camera yet, so we didn't take any pictures. Our second trial had a nut, foil, folded mesh, washer, then the rocket. It lasted 33.13 seconds, and we took two pictures. On the third trail, we had crinkled foil, washer, mesh, a nut, then the rocket It lasted 52.09 seconds, and we took three pictures. The fourth trial had wrapped foil, flat foil, mesh, a washer, then the rocket. It lasted 19.6 seconds, and we took three pictures. The fifth trail had foil wrapped around mesh like a flower bud, washer, then glue. It lasted 25 seconds, and we got one picture. The sixth trial had a nut w/ foil wrapped around it, mesh, and then glue. It lasted 38.9 seconds, and we got one picture. Our seventh and last trial had foil and mesh wrapped like a package, then a nut, then the rocket. It lasted 21.28 seconds, and we got two pictures.
We tried an eighth trail after we closed the computer camera and the word document that we were taking notes on. It didn't stay up as long as the strongest heat shield did (52.09 seconds) but it did stay up for at least 20 seconds.
I am going to put up pictures of the three longest lasting heat shields Friday.
Tuesday, December 18, 2007
Monday, December 17, 2007
Impact Craters Lab
Today in class my lab was impact craters. My partners were Taryn and Amalia.
For our lab, we had to record the width and depth of craters that we made with a small compass ball and flour in a tin pan.
Then, we had to make 2 hypothesis. The 1st question was; how do you think GPE will affect crater depth- directly, inversly or not at all? Why? We said directly, becaue the higher up the ball is and the faster it goes, the deeper the crater would be, because there would be a lot of force coming down. Same goes for the lower the ball is, and the slower it is going.
The 2nd question was; how do you think GPE will affect crater width- directly, inversly or not at all? Why? We said directly and not at all both, because if the ball is droped from an extremely high height, then the crater would most likely have a larger width, because the force of the drop would impacted the flour, and then it would most likely change the space around it to make room for the ball and the air coming down with it. We said not at all, because if the ball was droped from not a very high height (like 10 cm then the GPE would probably not impact the width of the crater as much.
We had to pick 5 different spots on a meter stick, and drop the ball from those spots. We picked: 10 cm, 20 cm, 40 cm, 60 cm, and 80 cm. Then, we used the measurements in 5 GPE = mgh equations.. That gave us the measurement of energy. Then, we plugged that into a KE = 1/2m v2 problem.
This was to figure out the velocity. The velocities and heights were:
height = velocity
10 cm = .626099034
20 cm = .885437745
40 cm = 1.25219807
60 cm = 1.53362316
80 cm = 1.77087549
We took the data 2 times, because the 1st time we got the same depth and width for each height. Then, we talked to Mary Margaret, and she told us to loosen up the flour. So we did, and then the results were a bit different for each height.
For our lab, we had to record the width and depth of craters that we made with a small compass ball and flour in a tin pan.
Then, we had to make 2 hypothesis. The 1st question was; how do you think GPE will affect crater depth- directly, inversly or not at all? Why? We said directly, becaue the higher up the ball is and the faster it goes, the deeper the crater would be, because there would be a lot of force coming down. Same goes for the lower the ball is, and the slower it is going.
The 2nd question was; how do you think GPE will affect crater width- directly, inversly or not at all? Why? We said directly and not at all both, because if the ball is droped from an extremely high height, then the crater would most likely have a larger width, because the force of the drop would impacted the flour, and then it would most likely change the space around it to make room for the ball and the air coming down with it. We said not at all, because if the ball was droped from not a very high height (like 10 cm then the GPE would probably not impact the width of the crater as much.
We had to pick 5 different spots on a meter stick, and drop the ball from those spots. We picked: 10 cm, 20 cm, 40 cm, 60 cm, and 80 cm. Then, we used the measurements in 5 GPE = mgh equations.. That gave us the measurement of energy. Then, we plugged that into a KE = 1/2m v2 problem.
This was to figure out the velocity. The velocities and heights were:
height = velocity
10 cm = .626099034
20 cm = .885437745
40 cm = 1.25219807
60 cm = 1.53362316
80 cm = 1.77087549
We took the data 2 times, because the 1st time we got the same depth and width for each height. Then, we talked to Mary Margaret, and she told us to loosen up the flour. So we did, and then the results were a bit different for each height.
Friday, December 14, 2007
Motors Lab
In class today, I did a motors lab. My lab partners were Anna and Lena. The 1st thing that we had to do, was wind a copper wire around a straw. We then had to hold the straw horizanatlly and put a needle into it.
The 2nd thing we had to do, was wind a copper wire around a battery 3 times, and then attache it to two paper clips, which we then taped onto the battery. And we also had to put a ceramic magnet underneath the copper wire circle. What was supposed to happen, was the battery sides, the paper clips, and the wire were supposed to get warm, and the wire circle was suppoesd to turn.
I did the 2nd expiriment with Anna, but then Anna went and helped Lena. We split up the expiriments so that our group could do both in the time we were given.
Although the contraption didn't work properly (the wire only spun 1/2 way then stopped). It did on the other hand heat up. In fact, it heated up so much, that I burned my cheek on it.
The 2nd thing we had to do, was wind a copper wire around a battery 3 times, and then attache it to two paper clips, which we then taped onto the battery. And we also had to put a ceramic magnet underneath the copper wire circle. What was supposed to happen, was the battery sides, the paper clips, and the wire were supposed to get warm, and the wire circle was suppoesd to turn.
I did the 2nd expiriment with Anna, but then Anna went and helped Lena. We split up the expiriments so that our group could do both in the time we were given.
Although the contraption didn't work properly (the wire only spun 1/2 way then stopped). It did on the other hand heat up. In fact, it heated up so much, that I burned my cheek on it.
Tuesday, December 11, 2007
Body Power Lab
In class today, I was the body power lab. My partner was Em.
My BEE= 744.86
My RHR= 87
My MHR= 120
My WHR= 120
My calories burned per minute= 1.5
My EE= 10800
My DEE= 11544.86
My work= 15778
My power= 2954.68
My horsepower= 3.960
My BEE= 744.86
My RHR= 87
My MHR= 120
My WHR= 120
My calories burned per minute= 1.5
My EE= 10800
My DEE= 11544.86
My work= 15778
My power= 2954.68
My horsepower= 3.960
Wednesday, November 21, 2007
Mini Culminations
So, I'm not sure if I was supposed to post about our mini culminations, I'll do it anyway:
Mini Culmination Try1:
We had this two Fridays ago. I was the robotics person on the Earth base (the lab), and I helped Clara with communications and Alice with the launch. On our 1st try, the launch broke, so we replaced it with the spare launch, but by the time we had got it set up again, our time was up, so we never finished. Over all, our group worked really well, and I thought that everyone did a really great job, because even though the 6th graders were being a little noisy, and we didn't figure out the mission until a little towards the end, and we were having a really hard time. I know that we did a good job, put our best foot forward, and I'm really proud of the effort we put forth.
Mini Culmination Try 2:
We had this last Friday. It was just as fun as the last one, and we had more time to touch up before the day came. This time, I was communications, because one of the girls in our group was going to get braces on that day, and also because I switched with Maddy. I worked with Maddy and Kimmy at the Earth base (the lab) to launch the pieces needed into space. We had to launch the pieces into a little basket on a robot, and then Kimmy was supposed to go and turn the robot on, and send it to Taryn who was the Mars base (the hallway). I think our group did a pretty good job, because even though we couldn't get the pieces into the robot, our communication skills were pretty great, and we all tried really hard, and we were short two people, and everyone was a good sport. Even though we didn't finish (like last time) and I had been hoping that we could finish, the extra prep gave us more time, and we pulled it off far better then I expected we would.
Mini Culmination Try1:
We had this two Fridays ago. I was the robotics person on the Earth base (the lab), and I helped Clara with communications and Alice with the launch. On our 1st try, the launch broke, so we replaced it with the spare launch, but by the time we had got it set up again, our time was up, so we never finished. Over all, our group worked really well, and I thought that everyone did a really great job, because even though the 6th graders were being a little noisy, and we didn't figure out the mission until a little towards the end, and we were having a really hard time. I know that we did a good job, put our best foot forward, and I'm really proud of the effort we put forth.
Mini Culmination Try 2:
We had this last Friday. It was just as fun as the last one, and we had more time to touch up before the day came. This time, I was communications, because one of the girls in our group was going to get braces on that day, and also because I switched with Maddy. I worked with Maddy and Kimmy at the Earth base (the lab) to launch the pieces needed into space. We had to launch the pieces into a little basket on a robot, and then Kimmy was supposed to go and turn the robot on, and send it to Taryn who was the Mars base (the hallway). I think our group did a pretty good job, because even though we couldn't get the pieces into the robot, our communication skills were pretty great, and we all tried really hard, and we were short two people, and everyone was a good sport. Even though we didn't finish (like last time) and I had been hoping that we could finish, the extra prep gave us more time, and we pulled it off far better then I expected we would.
Monday, November 5, 2007
Mini Culmination2
Okay. I totally forgot that we were supposed to be posting what we were doing in class on the blogs, so I'm going to do an update on what we've been doing since I last posted about this project.
The second class period we had, I worked on my parachute, and made the second sail for it, and I looked for some cardboard to tie at the bottom so that something could be attached to that. I needed help with testing it out, so after I worked on it, and it was ready to test out, Alice came out and helped me. It worked really well, and now the parachute is all ready. The parachute was made out of two sails, a piece of cardboard, and string. I taped two erasers onto it to practice tossing it down the stairs. The 1st sail (the one on top) is just a square that has a circle in the middle of it, and it is tied to the 2nd sail (the one on the bottom) which is basically a rectangle on it's side, so that when you look on it from a bird's eye view, it looks like a drawing of a 2-dimensional rectangle. The cardboard is just a rectangle with two holes in it, and is attached to the 2nd sail, and that's where the objects being thrown down will be attached to. After that, I went and helped her with her project. We got pretty far, so that I at least knew a little how it worked, and then the class ended.
So, the third time that we did this, since I was done with the parachute, and Emma needed help, I helped her with her project. I helped her to make a basket, and attach balloons to it, and make it run on the line. We had many trials and failures, but in the end it just wouldn't work out.
The fourth class time we had, I worked on Emma's thing with Kimmy, because Emma was sick. We changed the design a little bit, but the better half of the class was spent looking for the basket. Then I attached the basket to the string, and tried to make it go on the line. This time too, was a failure, as was the time after that, and the time after that. We just couldn't seem to make the basket go more than 3 feet.
The fifth class time (today) was spent trying to work on Alice's project which was neglected. I couldn't get that to work either, and I spent my whole time working really really really hard on it, but I just couldn't make it work. I'm going to try again in a little bit, during homework center, but the mini-culmination is this Friday, and I don't know if my team is prepared.
I'm going to have to work really hard today at homework center! Harder then I've ever worked before!
The second class period we had, I worked on my parachute, and made the second sail for it, and I looked for some cardboard to tie at the bottom so that something could be attached to that. I needed help with testing it out, so after I worked on it, and it was ready to test out, Alice came out and helped me. It worked really well, and now the parachute is all ready. The parachute was made out of two sails, a piece of cardboard, and string. I taped two erasers onto it to practice tossing it down the stairs. The 1st sail (the one on top) is just a square that has a circle in the middle of it, and it is tied to the 2nd sail (the one on the bottom) which is basically a rectangle on it's side, so that when you look on it from a bird's eye view, it looks like a drawing of a 2-dimensional rectangle. The cardboard is just a rectangle with two holes in it, and is attached to the 2nd sail, and that's where the objects being thrown down will be attached to. After that, I went and helped her with her project. We got pretty far, so that I at least knew a little how it worked, and then the class ended.
So, the third time that we did this, since I was done with the parachute, and Emma needed help, I helped her with her project. I helped her to make a basket, and attach balloons to it, and make it run on the line. We had many trials and failures, but in the end it just wouldn't work out.
The fourth class time we had, I worked on Emma's thing with Kimmy, because Emma was sick. We changed the design a little bit, but the better half of the class was spent looking for the basket. Then I attached the basket to the string, and tried to make it go on the line. This time too, was a failure, as was the time after that, and the time after that. We just couldn't seem to make the basket go more than 3 feet.
The fifth class time (today) was spent trying to work on Alice's project which was neglected. I couldn't get that to work either, and I spent my whole time working really really really hard on it, but I just couldn't make it work. I'm going to try again in a little bit, during homework center, but the mini-culmination is this Friday, and I don't know if my team is prepared.
I'm going to have to work really hard today at homework center! Harder then I've ever worked before!
Subscribe to:
Posts (Atom)