Saturday, May 21, 2011

The Path of an Marble

Hello guys, in science class lately we have been measuring the path of an marble. We {my partner and I}did this by putting tape on one side and labeling it start and then at the end of the table we would put another label which will say finish. Then we took the materials which were for us



Our guiding question was does the speed of the marble depend on the mass?

My answer was that it does because if the marble/ball has a lot of mass then it would be very difficult for it to start which equals an disturbance in the speed.


Materials
  • Metal Marble
  • Little Marble
  • Big Marble 
  • Tennis Ball 
  • Golf Ball {worst of all}
  • Straw 
When we got all the tools necessary we would take the straw but it next to the ball and blow on it with a steady breath. We would continue doing this for all of our materials. Of course because of the size and mass of the marbles/balls some of them didn't have enough density to go as fast or start {like the golf ball} So our teacher told us to draw all of the marbles paths. And  by my analyzes non of the marbles/balls would go straight. They would all curve or stop depending on there mass.

Sunday, May 15, 2011

From Feet to Fathoms

Hello guys. Today in science class we explored how people used to measure thing without any necessary tools, and we found out that there where many different ways to measure things.

Our guiding question was:
What are some advantages of using the metric measurements of the old English system?

Hypothesis:
The advantages of the old English measurements is that you can always use it you don't need any necessary tool to help you, like a ruler {Because not everyone has a ruler at hand}, you only need to have your body parts along with you.

Materials:
-Pace: walking with outstretched legs {1 yard}
-Egyptian Cubit: elbow to the tip of the forefinger {50 cm}
-Fathom: Tip of the forefinger to the other tip of the forefinger {6 feet, fisherman use this kind of measurement now days as well}
-Palm: across the palm {3 in}
-Span: from the tip of the thumb to the tip of the little finger {6 in}
-English Yard: from the tip of the pointer to the middle of the nose {1yard}
-Foot: One foot

Data Table:

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpFyswbZ91CC1hO1V-kcYaajCaQ4345Uje-pALeAmixkQ4R1fYatzXkMn1m0dLAmf6mXU6q4PM-MyLBgQz0GWmERKmeMVopJqoiSs1U87bENZh4hTee2wBWncI8MOz0uErM-c-l1aleQw/s320/science.PNG
Data analysis:
As you can see from the graph most of our {my partners and my} measurements without  tools were accurate. So the English measurement system was almost 100% correct. And we tried measuring things in different ways.

Conclusion:
In conclusion this activity was great for my partner and I because we finished our project on time, and we were working together and were not fooling around. The English measurement system was mostly accurate. The only problem that the English system has is that if a bigger and wider guy measures the same thing you did your not going to end up with the same/correct answer.

Further Inquiry:
I don't have any further questions and I have to admit that my partner and i where working very hard and where mostly focused to our task. My overall thought on this project was that it was fun but also challenging when it came to measuring without equipment

Thank you Mrs M for another exiting project