What?
—What happened?
—What did you observe?
—Did you learn a new skill or clarify an interest?
—Did you hear, smell, or feel anything that surprised you?
—How is your experience different from what you expected?
—What did you like/dislike about the experience?
—What happened?
—What did you observe?
—Did you learn a new skill or clarify an interest?
—Did you hear, smell, or feel anything that surprised you?
—How is your experience different from what you expected?
—What did you like/dislike about the experience?
This week we did an experiment working with detergents to find enzymes. I saw that the ph levels were almost the same level. Yes I did clarified an interest. It was that finding enzymes is really cool to observe. I didn't hear or smell or feel any thing but I did see it fizzle and foam up. I didn't know it was going to be this exciting working in groups figuring out what to do next and see what is going to happen. I didn't like how we had to start the experiment all over, but I did like working in groups and see what is going to happen next.
ReplyDelete- Dalla Coulibaly
Scientists make mistakes from time to time! Having to start an investigation over is just part of being a scientist!
DeleteThis week on science, we did an experiment using gelatin which is an enzyme, and different types of detergents. I mixed baking soda with gelatin and observed how much protein did the detergent digest when it is on the gelatin for 1 day. I didn't hear, smell, or feel anything that surprised me but when I dissolved the baking soda with the gelatin, it kind of surprised me by seeing the fizzling. I expected something cool to happen, like the a temperature change of a solution. But I experienced the gelatin being digested by different types of detergent which and that is cool. I liked the fact that we have to cooperate as a team and work together and follow the procedure. I disliked the human error we had on the first day.
ReplyDeleteRemember that the gelatin was your protein substrate and the detergents were the enzymes!
DeleteThis week in science we learnt the procedures of the lab called Enzymes in Detergents. We kept a regular gelatin of 18g into a 150mL beaker and we added 50 mL of boiling water to the beaker and stirred it with a plastic spoon and recorded the pH solution and we added the baking soda to the hot gelatin and stirred we observed and recorded the pH of the solution. After that we placed 4 test tubes in a test rack and we sealed the tubes tightly with the wrap and tape. I like the experience because I learnt new things which will be useful.
ReplyDeleteThis week on science, we did an experiment to determine if enzymes break proteins. At first when the gelatin dissolved in water. I observed closely and notices that the dissolved gelatin cooled quickly. Therefore, i do not agree with Kowshik that nothing happened. After adding the baking soda i noticed that backing soda caused the solution to fizzle, steam, and get foamy. It was frustrating for me to pop all the bubbles so the experiment be correct and have no human errors. However, that wasn't the only problem i had, the text book stated to put 1.8 grams of baking soda but we had to pour 1 gram of backing soda into the solution. It was really hard work going to waste. After doing the same experiment up to where we left of we added 1 gram of backing soda into the solution. I poured all one solution into one detergent into one solution and etc. Furthermore, in the first day i noticed that the solution had increased and this surprised me because in other people's table nothing happened to the solution.
ReplyDeleteThis week we did a lab called Enzymes and Detergents. This lab includes gelatin, water and detergents. First, we mixed the gelatin powder with warm water and let it dissolves.Next, that we tested the pH of the gelatin in the warm water. My partner and I got pH 6 and we measure the gelatin and put the into 4 test tubes. Then we take our detergents and mixed them with water and tested the pH from them. The detergents that we and tested is Roma, Foca and Areil. The pH that we had got for Roma was 11, for Foca we got pH 11 and for Areil we got pH 10. After that we take each test tube and put 15 drops of one of the detergents with 15 drops of water inside of it. On the next day we were kind of surprised when we had saw the what happen to our classmates solutions and our solutions.
ReplyDelete~Denay Hayes 802~
This week we did a lab Enzymes and Detergents. In the lab we used water, detergents and gelatin. We used the gelatin and mixed it with warm water. Then we tested the pH of the gelatin. Me & Eric got a pH of 3 and then after we put the gelatin in Four test tubes. Then we put our detergents (Foca, Ariel, and Roma) and tested the pH. For Foca we got a pH of 11, for Roma we got a pH of 11 and for Ariel we got a pH of 9. Finally you put 15 drops of water in each test tubes and 15 drops of the detergents.
ReplyDelete- Evelyn Ramos
-Class: 804
This week we did a lab called Enzymes and detergents. The lab materials we used were 3 types of detergent, gelatin, baking soda, and a triple beam balance. My lab partner and I used the gelatin and mixed it with warm water. Then we tested the pH of the gelatin. We got different pH's for each detergent and it was very interesting to observe. There was nothing interesting about the smell and I did not learn any new skills. My experience was not how i expected it to be. Honestly I did not like this lab some things were a little bit confusing but i am glad I finished the lab.
ReplyDelete<> Mahtab Hoque class 802 <>
This comment has been removed by the author.
ReplyDeleteThis week we did an experiment to see if enzymes in laundry detergent can break down protein. During the experiment we had to pour about 50 mL of warm water in a beaker in order to stir the mixture of gelatin. Afterwards we had to find the ph of the substance and it was 2. When adding Sodium Bicarbonate the ph was 3. Lastly my group poured 5 mL of the gelatin in four test tubes. After this we made three mixtures of laundry detergent each different brands. Then tested the ph of them the ph of Foca is 9, the ph of Ariel is 10 and lastly the ph of Roma is also 10. Then we put a various amount of detergent in three test tubes each different brands of detergent and left the last one as our constant. In this experiment I learned that instead of stirring liquids rapidly I should slow down and stir it carefully or there might be an unexpected reaction. When adding the Sodium Bicarbonate I noticed fizzling and heard fizzling. I liked and enjoyed my experience in this lab because I like to read and figure out the next step in the procedure and this was an ideal lab for that.
ReplyDeleteWe did an experiment using detergents to undestand enzymes.We used differents types of detergents.I really liked this experiments to learn about the constants and independents and dependents.We have to keep records of how much gelatin is consumed.I would change about this experiment that I would change the type of water.We used distilled water maybe changing the water would give a different effect.Also using different types of detergents would make it different.
ReplyDeleteThis week we did a lab called Enzymes In Detergents . Enzymes is a molecule that increases the the speed of biochemical reactions . During the lab we had to record the pH of the 3 detergent Roma , Foca , and Ariel . Also we had to record the data of the amount of digested proteins in detergents .
ReplyDeleteThese past few days we did about Enzymes and Detergents. Enzymes are proteins produced by all living organisms that act as catalysts to speed up chemical reactions that would otherwise occur at a much slower rate or not at all. The enzymes used in laundry detergents act on materials that make up a variety of stains and soils so that these materials can be washed away more easily. I expected more bubbling and a bigger reaction, however the reaction was at a minimum.
ReplyDeleteLast week, my class and I did an experiment based on enzymes in laundry detergents. Did you ever know that some detergents may have molecules that increase the speed of biochemical reactions? These types of molecules are known as enzymes. A protease is an enzyme that helps break down proteins. In this experiment, my lab partners and I wanted to find out the effectiveness of laundry detergents that contain enzymes. Therefore, we used a protein mixture to stimulate food stains. The laundry detergents we used for this lab were Roma, Foca, and Ariel. In addition, I really liked how the lab was engaging, and it helped me learn a lot about enzymes and how much it impacts the effectiveness of laundry detergents.
ReplyDelete