Separating Solutions

Create a new blog post titled, “Separating Solutions”
Categorize it in POM and Science
Make sure to have the following in the post:
Lab # 2 Questions: Answer the following questions onto your blog post…
1. Describe the physical properties of the substance that remains in the evaporating dish.

It is flakey and looks thin, It looks a little bit different from salt, but is the same.

2. Where is the water that was in the salt water solution?

It evaporated into the air.
3. What do you think the substance is that remained in the evaporating dish?

Salt
4. What could you do to identify the substance?

Compare it to like substances and find the physical properties.

Activity 4 Follow up Questions about the reading and the whole Separating Solutions section
1. Explain why scientists would classify cereal as a heterogeneous mixture.

Because you can easily separate the mixture.

2. After a minor traffic accident, the police noticed that a solution had spilled and run off

the roadway onto the shoulder of the road. Describe how you could recover a

sample of this solution from the dirt, rocks, and sand on the road’s shoulder.

You could filter the solution out of the rock and dirt mixture.

3. When a scientist mixed together a number of substances, light, heat, and gas were

produced. The scientist could not separate the new substance using physical

properties like solubility, density, or color. Did the scientist create a mixture, or did

she produce something else? Explain how the product she produced was like and/or

different from the homogeneous and heterogeneous mixtures you have used.

They produced a compound because you can’t even separate the mixtures without another chemical reaction.

Class Self Reflection

  1. White Hat: What was some of the important learning from your piece(s) of work? Give examples or specifics and NOT just a list.
My POM scrapbook  because I worked really hard on both of those. I spent a lot of time on my POM scrapbook. It is also filled with a whole lot of information that I didn’t used to know. It was alo really fun to make. I had a lot of fun making it and editing it too. All the labs that we did for it were really fun and I loved taking pictures.
  1. Yellow Hat: What were some positives about creating the piece of work? Did you have any ah-ha moments? What new things did you learn that you are proud of?
While making the POM scrapbook, I worked a lot on that and I had learned so much more about properties of matter. I had learned so much about boiling point, states of matter, and density. Creating the scrapbook helped me understand this unit so much more.
  1. Black Hat: What were some difficulties with your learning on this piece of work? How did you overcome them or solve them?
I was a little bit disorganised  because I had gotten all the labs mixed up, but when we received the POM checkoff sheet, I was much more organised.
  1. Green Hat: Do you have any new ideas or learning that relates to your piece(s) of work? Have you shared them in some way with anyone else in school or outside of school?
I have learned a lot, but no, I have not really shared it.
  1. Blue Hat: What goals or actions do you take to help with your learning, time at school, work habits or life outside of school?

I need to focus more on homework and block out distractions while doing my homework because sometimes I will get distracted and not feel like doing it, but I know I need to.

Shang Dynasty Post

The Shang dynasty is believed to be very violent because of many of the creations and  found. One of the artifacts found was an axe. But the axe was very interesting. It was made out of bronze, a technology discovery then, was used for ceremony, was an art,and used for government. The first point is that it was made of bronze. This shows us that the Shang dynasty was quite developed in technology. Bronze can not be digged up from the grown or grown on trees, so the fact that they can make thing out of bronze is amazing. It is believed that many of the weapons then were made of bronze. My next point is that it was used for ceremonies. In ceremonies, the Shang people made many sacrifices. Making sacrifices showed respect and were made to important people. The axe may have been used to kill people or animals. Some of the common sacrifices found in Shang graves were humans, horses, dogs and even an elephant. The next point is that the axe may have been used for the government. Many people may have been prosecuted with death then. The axe may have been used to behead or slice into a persons body. Breaking the law lead to many, many gruesome deaths of people. Only the higher priests and government people get to use axes because the were considered very important.  These are the reasons that axes were very important in the Shang dynasty, leading for them to be very violent and cruel.

Boiling Point Post #2

  1. At what temperature does water boil?
It depends on what altitude you are at. Below seas level, water boils at about 120 degrees celsius, At Mount Everest Base Camp water boils at about 80 degrees celsius, and a little bit above sea level, it boils at about 100 degrees celsius. This is because the higher up you are, the lower the air pressure is. Pressure makes the water boil slower because it pushes down on the molecules, keeping them more compact.
  1. What effect, if any, does the amount of water in the beaker have on the boiling temperature of water? (Look at the class Google doc where everyone has entered their data to help with this question)
It has no effect because all water boils at the same temperature. We did two different experiments, one with 500 mL of water and ice and one with 300 mL of ice. In both of our experiments, the water boiled at about 90-100 degrees.
  1. Does the temperature of the boiling water increase, decrease, or remain the same after the water has boiled for two minutes? If there was a change, why do you think so?

It will stay about the same, but maybe change by .1 or something small. The only reason the temperature might change is because a tiny bit of the energy and molecules are being let out as gas. But it will not change that much.

 

Book Talk Reflection

What would you take away from the book talk today?

Our book talk today was mediocre. First, I think we need to stay focused a little bit more because we went off topic a lot. Most of the times we were not too far off, but we were till off. So tomorrow my goal is to stay on topic more. I also want to reread the part of the book about the pearl on the dragon because we were confused about were it had come from. We at first had thought it was an extra eye, but most people disagreed. So we then thought maybe someone stuck it onto the dragon. We were also confused why it was keeping him from flying.We thought it was too heavy, but then we wondered why it would be so heavy; So than we thought i t had a magical spell to keep him from flying.I also had realised that Minli and  Dragon were actually quite alike. They are both willing to give up and risk themselves for others.  I had not really noticed that when I had been reading. I did take away a bit from this book talk, but not too much.

Boiling Point Lab

  • At what temperature did you predict the ice would completely melt?
I predicted that the ice would melt at 1 degrees, which was very off.
  • At what temperature did you predict the water would boil?
I predicted that the water would boil at 1 degrees Celsius which was also vey off.
  • Using the graph that shows the changing states of water, answer the following question:
  1. What usually happens to the temperature of a substance when heat is added? Support your answer with data from the graph.
The temperature rises, and the liquid will slowly start to boil. On our graph, the higher the temperature got, the more it boiled. But after a while, it kept at a steady boiling rate.
  • Notice that there are two sections on the graph where heat is being added but the temperature of the water does not change. Why? What is happening to the water molecules at these two stages? Support your answer with data from the lab experiment.
This happens because they are just starting to boil or melt. It takes a while for the ice to melt, and for the water to get to a steady boil. This is like the molecules warming up to get ready to dance and move. The firat dip is the ice melting, and t he second one is the water boiling.
  • As the temperature of water increases, what happens to the energy of the water molecules?
They starts to vibrate and move more, spreading farther and farther apart.
  • As the temperature of the water increases, what happens to the spaces between the water molecules? Use particle theory to explain what you observed. You might start your sentences with ” During my observations I noticed …….. this happened because in particle theory………….”
During my observations, I noticed that as the temperature of the water increased, the space between the particles got farther and farther appart. To support my theory, Ice is solid because the particles are close together and compact, but steam is less dense and floats because the particles are further apart. 
  • Write 5 questions that you thought of during the lab. For example: “What made the bubbles?”
  1. Why were there bubbles?
  2. If we had an open flame, would our results be different?
  3. How does logger pro, the application we used work?
  4. What if you put ice in a bucket of water that was a certain degree, and let it melt to the same point of the cold water, would it stay as ice form, or eventually melt?
  5. How do the ice and hot water interact?

 

Weekly reflection

Each Monday morning you are going to be given some time to reflect about the previous week. Here is what it will look like:

  1. Discuss with classmates on a team what were some things from the previous week that you did in our classes? In a team it will help to remind you of all that you have done.
We took the chapter 13 test on india, in SS. Then we finished unit  5 in math. I also remember Christina’s Mom showing us her wonderful singing.
  1. Now it is your time to do a written reflection with detail about your learning last week. Use the following questions to help guide you:
Last week the whole class had a bit of a problem listening. We had to refocus many times and that still sometimes didn’t work. As an individual, I feel like I could have also worked a little bit more on listening too.
  • What were some of the  important learnings that you remember from last week? Give examples or how you learned them if you can.
I learned that ancient China and india both have a lot in common. First off, China is hot and dry in the summer and so it India. But they both also have big plateas and mountain ranges.
  • If you could tell someone who is not at this school something about your learning what would it be?
That if you get distracted in class, try your best to refocus because otherwise you are going to miss a lot of information.
  • What are some questions that you still have from these learnings last week?
  • What goals do you have this week?