Day: September 8, 2016

Scientific Method Bubble Gum Lab

minjih2015

Today our science class did a ‘Scientific Method Bubble Gum Lab’.

What brand of gum is the best at blowing bubbles and why? Support your answer with observations and your data.

Big League Crew is the best at blowing bubbles. Hubba Bubba’s average bubble size was 21.5cm and Big League Crew’s average bubble size was 26.3cm. Blowing the bubble with Big League Crew was easier to blow the biggest bubble than Hubba Bubba, becuase it is soft and that made it stretch more.

How does gum stretchability relate to bubble size?

The bubble size depends on the gum stretchability. The stretchier the gum is, the bigger the bubble will be. Comparing the two gums, Big League Crew blew the biggest bubble and also it stretched out 617cm further than Hubba Bubba.

List 5 variables that may affect the outcome of this experiment.

  1. Mouth temperature
  2. Saliva
  3. Chewing time
  4. Bubble blowing capability
  5. How fast the person chew in a limited time

Explain how the data you collected can be described as both qualitative and quantitative

Observing the colour, shape, smell, and texture of the gum is a qualitative data. Measuring the length of the bubble and the length of the stretched gum is quantitative.

Were SI units used in this lab? Explain.

Yes, I used centimeter to measure the diameter of the bubble and the length of the stretched gum. I also used grams to weigh the gum.

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Math Football

minjih2015

Our goal was to make a football with spaghetti and marshmallows. We first thought that using the whole spaghetti will make the football unstable, so we decided to break the spaghetti in half. After that, we attached the spaghetti with the marshmallows and made hexagons to create a 3D figure. Unfortunately, the figure was not stable and became bigger than we thought. We broke the spaghetti in half again and made hexagons and triangles to create the football. We thought that if we use two different shapes, it will make the figure stronger. While we were making the football again, we realized that the figure was much stable this way. We only had 20 minutes to do this project so we weren’t able to finish it but here is a picture of the football we made.20160907_144045

By doing this project, I realized that football relates to geometry.  We saw a video titled ‘Geometry of Footballs and the Cube-shaped Ball’ and I learned that most of the football that we know is made out of 12 pentagons and 20 hexagons.

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