March 2018 archive

Solution Fluency

(Information was taken from the Laundry Detergent Experiment – Science 9 – Block B – Semester 2 – Mr. Horton for this post. )

DEFINE:

The challenge that I investigated was which laundry detergent cleans better. Does a higher price point always equal a better clean? Or does it have something to do with the ingredients? I investigated by using warm water and multiple laundry detergents with a coffee stained rag stain.

Supplies

  • Rag
  • 15 ml of each Detergent using Hot Water
  • 5 Beakers

Hypothesis: We think that the more expensive detergent will wash better because of its higher price point.

Procedure (Stirring for 10 Minutes Each)

  1. Stain rag with Coffee the day before.
  2. Cut up rag into 5 pieces.
  3. Wash a rag in hot water using NO DETERGENT (Control Group).
  4. Wash a rag in hot water using 15 ml of Detergent (No Name Brand).
  5. Wash a rag in hot water using 15 ml of Detergent (Tide).
  6. Wash a rag in hot water using 15 ml of Detergent (Sunlight).
  7. Wash a rag in hot water using 15 ml of Detergent (Woolite).
  8. Compare to see Results!

DISCOVER: 

The first question I asked were what ingredients were in the laundry detergents? Did laundry detergents with a certain ingredient clean better than with a one that didn’t have the certain ingredient? With some research, I was able to find the ingredients for Tide, Sunlight and Woolite but could not find the ingredients of the No Name brand.

No Name Brand Ingredients: UNKNOWN

Tide Ingredients:

  • water
  • alcoholethoxy sulfate
  • linear alkylbenzene sulfonate
  • propylene glycol
  • citric acid
  • sodium hydroxide
  • borax
  • ethanolamine
  • ethanol
  • alcohol sulfate
  • polyethyleneimine ethoxylate
  • sodium fatty acids
  • diquaternium ethoxysulfate
  • protease
  • diethylene glycol
  • laureth 9
  • alkyldimethylamine oxide
  • fragrance
  • amylase
  • disodium diaminostilbene disulfonate
  • DTPA
  • sodium formate
  • calcium formate
  • polyethylene glycol 4000
  • mannanase
  • Liquitint™ Blue (a dye)
  • dimethicone

 

Sunlight Ingredients:

  • Sodium Laureth Sulfate
  • Ethoxylated Lauryl Alcohol
  • Sodium Dodecylbenzene sulfonate
  • Sodium Citrate
  • Sodium Cocoate
  • Triethanolamine
  • Enzymes

Woolite Ingredients:

All of the detergents have a variety of ingredients. Since Tide cleaned our rag the best, I believe that it perhaps may not be a certain ingredient that cleans the best but rather the number of ingredients. Compared to the other detergents that we know the ingredients of, Tide has the most. More ingredients could mean a better clean but this may not be the best. Too many chemicals is not beneficial to our health and we must lookout for the harmful ingredients in the detergents we buy.

The second question I asked was how long should we wash our rags for to see the results? If we didn’t wash the rags long enough we would not see any results but we also didn’t want to be washing our rags for too long. I found that 10 minutes is enough time for the stain to dissolve and we were able to see the results.

DELIVER:

Supplies

10 Minute Timer – Ready to go!

Rag in Woolite Detergent

Rag in Tide Detergent

Rag in No Name Brand Detergent

Rag in Sunlight Detergent

Rag in Water

Results!

After the rags dried over the weekend, my group concluded that the Tide detergent cleaned best. Although the stain was not completely gone, it had mostly faded away. Though I must admit, the other detergents came close to Tide. My hypothesis was proved wrong by these results. I felt confident that Woolite will clean best because it was quite expensive compared to the price of the other detergents. This experiment showed a good example of how a higher price point does not always equal better quality.

DEBRIEF: 

As reflected in the post, I am proud of how well the experiment went and the results and work produced was of high quality. A lot of time and effort was put into the experiment and the hard work definitely payed off!

 

 

Collaboration Fluency

Group Members: Andrea, Claire, and Theo.

Footage of The Race and Interviews:

 

Our Motto: Encourage Wild Ideas

The first step to successfully accomplishing the project was to create our group contract. We began by determining the strengths of each of our group members. Andrea’s strength was adaptability. She is able to adapt quickly to any situation or circumstance. Claire’s strength was time-management. She manages time well which helps us use our time wisely. Theo’s strength is creativity. As an artist, she thinks out of the box and can help use find new techniques to win. My strength is leadership. I took on the leadership role because I like to be a leader and help my team as much as possible. Next, we divided the work. Theo and Claire were racers. Andrea was the reporter and I was the timer. We made a few rules regarding our collaboration. They were:

  1. Try to give everyone an even amount of work to do. One person will not have to do all the work while the rest of the group members slack-off.
  2. Listen to each other’s ideas. Even if you don’t necessarily agree with that idea or vision, listen and take away the parts you like and find a way to add it to your project.
  3. Consider everybody’s ideas. This ties in with the second rule of respecting everybody’s ideas.

If these rules are not being followed, then the team member that doesn’t complete their part does not get marks for this assignment. On March 6th we completed all of our research and we raced on March 7th. Our initial goal was to try our best and win the fastest time in our block and that was exactly what we did!