Tag Archives: sci9detinquiry2018

Detergent Blogpost

Detergent Blogpost

Purpose:

The purpose was to see how well the groups could collaborate together and to see which detergent is more efficient.

Materials:

  1. 3 soy sauce stained cloths
  2. 3 600ml beakers filled with 300ml of hot water in 1, 300ml of room temperature in 2 and 300ml of cold water in the 3rd beaker.
  3. 1 graduated cylinder filled up to 15 ml with tide.
  4. 1 heating plate to heat up 300ml of water
  5. 1 thermometer
  6. 3 stirring rods

Safety Precautions:

We used safety goggles to protect our eyes from dish detergent splashes and very hot water splashes. Also used beakers tongs to not burn out hands on the beaker. Cleaned up all the spills at the end of the experiment.

 

Procedure:

  • Stain 3 cloths with soy sauce
  • Pour 300ml of water into 3 different 600ml beakers
  • Heat one beaker up with a heating plate
  • Leave one beaker room temperature
  • Fill the last beaker with ice cubes
  • Pour 15ml of tide in graduated cylinder
  • Once all the beakers are at right temperature place 1 cloth in each
  • Pour 5ml of tide into each beaker and stir for 10 minutes

 

Data and observations:

In this picture the room temperature water started to form bubbles and soap before the cold water.

In this picture we put the cloth in with the hot water and tide, and it started to bubble and foam up right away.

In our last observation this is where we lay out all the cloths to dry and like our hypothesis, the hot water did get rid of the stain better than cold water.

 

Reflection Questions:

1)     Some of the first questions that my group and I discussed were, what is laundry detergent and does temperature affect the efficiency of the detergent. My group and I decided to go with changing the temperature for the experiment because it was a more powerful question and easy to do.

2)     After the wonders questions the research help me understand a lot more about detergent since I did not know very much about it. I now know how it cleans cloths.

3)     The independent variable was the temperature. The dependent variable was the cloth with the stain on it.

4)     Our hypothesis was “will hot water be more efficient than cold water”. The results were correct, hot water did work better than cold water.

5)     We only changed the temperature and kept everything else constant like the time, amount of water and the amount of detergent.

6)     I now wonder if liquid or powder works is more efficient.

7)     Some strengths I was able to bring were making the experiment more enjoyable by using my sense of humor. I was also trying to make everyone included in this experiment. Next time I would try to collaborate differently by bringing more materials even though we didn’t need to bring to much on this experiment.