Neo Earth

Monday, February 7, 2011

Science Class - February 3rd, 2011

In Thursdays class we did the final tests of the Balloon Rocket Lab. In this lab we needed to design a balloon rocket that either went the farthest or went the fastest speed. Each group had their own design and each of these was tested three times. Each of the groups testings went well. Each group measured time (seconds), distance( meters) and calculated their rocket's average speed (m/s). To calculate speed you need to use the formula distance divided by time. You can see the version of the speed formula we use in Ms. D's class below. It tells you how to solve for distance, time or speed using the triangle method.
Every group used only one balloon, even though we were allowed to use two
in total. One group used 1.5 straws and the other three groups used 1 straw
each. The amount of tape also was different for every group. In my group we
used one straw and one balloon. Our rocket went an average distance of
19.65 m, in an average time of 7.56 s, which calculates to an average speed of
2.59 m/s. Our team didn't win, but we didn't lose either.
(Pictured here: Ben, Nathan, David)


This group win in the distance but it took them a lot of time

(pictured here: Tamara, Vale, Emilija)

This group that is my group won in speed

(Pictured here: Chiara,Jakub, Ghazaleh)

The way that we are suppose to finish this lab is to first finish finding the averages, the second step is that you have to have IV, DV, CV, UV and, the third one is that you have to draw a force diagram for are final balloon rocket (the final design). and the last three steps are the questions that was all. Thia are the questions:




    1. Use Newton’s Three Laws of Motion to explain the motion of the balloon rocket from launch until it comes to a stop. All three must be mentioned and discussed. Keep in mind the scientific vocabulary you need to include in your writing!
    2. If you had the opportunity to design your rocket one more time, what would you change and why?
    3. NASA and the ESA are looking for new designs for rockets and space crafts in the future. Based on what you learned in this lab, what are some factors these two organizations need to keep in mind for their possible designs? Keep in mind Newton’s Three Laws and scientific vocabulary when answering this question.
You could use Moodle because you can find the lab sheet that include the grading sheet, the question.



  • Examples of Balloon Rockets check out this site because you can sea another design of rocket balloon.





  • http://www.scienceforamerica.com/technology-integration/lesson-rocket-balloon-variables.html This site talk about the variables of the this lab.




    1. THE NEXT SCRIBER IS COURT!!!!!!!!

    3 comments:

    1. Ghazaleh - this post is a HUGE improvement from the second quarter post you did; congratulations!You have included pictures with captions, three hyperlinks, you have explained the Balloon Rocket Lab Challenge and I liked that you included the triangle to manipulate the speed formula! Your links for the rocket balloons are interesting and show this concept in a new light. Plus, the variables video is really helpful and I may show it to sixth graders later in the year when we are studying varibles for the first time - thanks for that! Your spelling, grammar and punctuation in the second half is not as good as in the first half, so be sure to proof your work carefully. Overall, nice work and congratulations again for the marked improvement! ~Ms. D.

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    2. Hi Ghazaleh,
      Like Ms. D said, this post is MUCH better than the one last quarter! I liked your pictures, links which were hyperlinked, and questions that you had to answer during class. You could improve just on a few things; using more color, checking spelling and grammar, etc. I also don't understand why some of the links were in text (such as the one to Moodle) and one was the whole link written out (the one for the variables of the lab). You could also have added a specific link to the instructions of the lab. Other than that, this post is really good! Keep it up! :)

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    3. Hi there Ghazaleh,
      As Viktor and Ms.D said, this post is way better that the one you published last quarter! You sometimes showed enthusiasm, which I think is great. You put many pictures, and your captions for the pictures were good. You put the right labels, and it was great that you included the triangle at the start that showed the formula for distance, speed, and time. You put a link to Moodle, which is really good. Though, I think that you should change your colors, since it looks a bit dull and isn't attractive to the eye. You explained the lab very well, and it helped me remember what we did in class. Your spelling was OK, even though you should fix some things. You should also re-check your grammar, because you have some mistakes. Overall, great job, and keep up the great work!

      Davide

      ReplyDelete