Scientific ethod review Bubble Gum Lab

Conclusion: Our two hypothesis had opposite results when all data was recorded, Gum A had a larger average diameter while gum B was much stretchier. In Part 1 our hypothesis was  “If we chew both pieces for 3 minutes each, then Gum A will blow bigger bubbles because it is thicker.” We then tested both brands and recorded our data. We recorded 4 trials for both brands. The average bubble diameter for gum A after these 4 trials was 10cm while gum B was 3.25cm. We concluded that this was because Gum A was thicker therefore it allowed it to stretch and would not break as easily. Our hypothesis in Part 2 was for gum stretch ability, “If the gum is stretchy then the bubble will be bigger because it will not easily break”. When we tested both brands our data showed that gum B had more stretch ability, allowing it to stretch to 130cm while gum A stretched to 49cm. Because gum A was thicker it allowed us to blow larger bubbles however this made its ability to stretch harder. Gum B stretched easily and much further than Gum A but the ability to blow large bubbles was then compromised. Our hypothesis should be refuted because of the opposite results we ended with.  The 5 variables below could have greatly affected our results.

  1. The number of times the gum was chewed by each person in 3 minutes. If it’s not the same, it can affect the results. (how many bites/minutes)
  2. The techniques you use while chewing the gum (speed, amount, etc.)
  3. your ability to blow bubbles
  4. The speed of pulling/stretching the gum while measuring stretch ability
  5. more tests with Gum B, results may have been affected by ability to blow bubbles, time or speed of chewing etc.

qualitative: We used qualitative with Part 1 while measuring diameter of the bubbles

quantitative: We used quantitative while observing the two brands of gum as well as recording bubble size, appearance and the length of the gum stretching using table graphs

SI units: The SI units used were centimeters and grams. Centimeters were used while measuring the diameters of the bubbles and while measuring the length of stretched gum. The grams were used to measure the weight of the gum in the beginning to make sure it was the same mass.

Partner: Katie Paterson

 

Pictures:

By: Jayden Harris

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