3 Questions

1. What tasks have you completed recently? The tasks that I have completed recently are doing various experiments where I needed to observe and learn what causes chemical and physical changes.

2. What have you learned recently? I've recently learned about matter classification, where I can identify the differences  between types of matter, and  know the different types of methods of mixture separation.

3. What are you planning on doing next? What I plan on doing next for myself is to fully understand matter classification, being able to know the information straight from my head instead of checking for my notes so often.

Differentiating White Powders

Differentiating White Powders
Exploration Questions 

 

• Could you distinguish the powders just by looking at them? -No you cannot distinguish the powders just by looking at them.   
• What did you observe when you added the different liquids to each powder?  (i.e., what were your results?)

 

 

 

• If you were given one of the powders, as an unknown, could you identify it?  How?  Why?- If one of the powders were given as unknown I would be able to identify it, by observing how the given unknown powder reacts with the potassium. Using the potassium would be the best liquid to use first because each powders color reacted differently with the potassium. If the powder turns yellow then the powder is obviously baking soda because baking soda was the only powder that turned yellow. If the powder turns grey then brown it could either be baking powder or corn starch, to figure out which of the two the unknown powder is I would use either water or vinegar to distinguish it; if the powder bubbles and fizzes it is baking powder, if it doesn't then its corn starch.

 

 

 

 

 

 

 

Reaction In a Bag Lab

Exploration Questions

• Could you distinguish the powders by just looking at them? Yes by looking at the textures they have one is powdery and the other is sugar like.
• What did you observe when you added the different liquids together? When adding the phenol red to the baking soda the color was blood red, when it was mixed with the calcium chloride it was a dark red orange color. When the powders were mixed with the water the colors for both liquids were clear. I found that phenol red had no impact on the temperatures of the liquids. When phenol red or water was mixed with calcium chloride the liquid was warm; when P.R or water was mixed with the baking soda the liquid was cold. At the end of the experiment I noticed that when all three ingredients were mixed together it was the only one that turned into a orange/yellow color, and that it wasn't just a liquid substance it had bubbled and looked foam like; when just mixing two ingredients at a time it instantly turned into a liquid substance there was no bubbling/foam.
• If you were given one of the powders as an unknown could you identify it? If the powders were given as unknown I would be able to identify it, by looking at the characteristics of the two. The calcium chloride is sugar like with many small crystals, the sodium bicarbonate is powdery and fluffy looking.

CONCLUSION
In conclusion I have found that phenol red had no impact over the calcium chloride or the sodium bicarbonate because using water in place of the phenol red had the same impact on the powders. When all three ingredients were mixed together the color was different than all the others the others were either red or clear, and it wasn't a liquid it turned more like foam. But  the unanswered question that is lingering around waiting for an answer is why did it turn ORANGE/YELLOW?!?!?!?!!

Bouncy Balls Experiement

 

 

-The best proportion of the experiment were 1.5 ml of borax solution, with 12.7 grams of glue.
-The proportions of sodium borate and glue matter because the amount of them effect each other. You can use the same amount of glue but different amount of solution each time (or the other way around), the results of texture and how long the ball takes shape varies, the results are never the same, unless you use the same proportions each time.

-I determined the best proportions by changing one variable first which was the amount of glue, observing more or less glue impacted the bounce and shape of the ball. After I saw that testing different amounts of glue I saw that less is more, less had a greater shape and bounce. After I used the same amount of glue that made the ball better I changed the amount of solution to determine if less or more solution had more significance over another. My method is important because it's important when looking for a cause and effect in an experiment to keep track of the different changes of variables and how they impact the ball. Also to determine what can be done to improve.