Science Sugar Crystals

Yesterday in science we had to get into groups of three and we had to make some sugar crystals. The sugar crystals were made out of sugar and water.

Method: 1. Pour approximately 50 mL of water into a 250 mL beaker.

              2. Pour 250g of sugar into a beaker.

              3. Light the Bunsen Burner with the beaker on top of the Tripod.

              4. Once the water starts to boil turn off the Bunsen Burner and pour a little bit of sugar into                        the beaker and start mixing with a stirring rod.

              5. Once the first lot of sugar has dissolved then put a little bit more sugar in and keep doing it                      until all of the sugar is dissolved and you have no more. 

              6. Pour the syrup into cups for each person and than put a popsicle stick inside of the cup and                    then sit it some where that it can set. 

Equipment: 2x 250 mL beakers, A pencil or stick, A stirring rod, Bunsen Burner, Heat Mat, Tripod and a gauze mat.

I learnt that if you have to much water and not enough sugar than it will stay as a liquid and if you have to much sugar and not enough water than ti will be a really thick mixture and it wont set. I also learnt that if you put to much sugar in at once than it will take forever to dissolve and it might not work how it is meant to. And also that making crystals can separate a solid from liquid. A highly concentrated solution was needed (Saturated Solution) to be able to grow crystals.

It has now been five days since we made the sugar syrup and put it into the cups. For the first few day it was still a liquid with little tiny crystals floating around but in the last two day it really started to form around the stick and the cup. Here is what it looks like when it is finished.

Feel free to ask any questions about this experiment.

  

Science Experiment

In science this week we did a experiment with purple crystals (Potassium Permanganate) because in science we have been working on dilution and concentration. For this experiment we had 6 test tubes and we had to put different amounts of water into each test tube. We then had to put one small purple crystal (Potassium Permanganate) into the test tube with the most water. We then had to use a pipette to take some of the purple water and put it into the next test tube. We then had to do the same thing and every time that we took some and out it in the next it kept getting lighter and lighter to the point where the last one was so clear that you could barely see any purple.

Method: 1. Place the six test tubes in a test rack. Label the rack with numbers 1-6
              2. Using the measuring cylinder fill the test tube 1 with 10mL of water. Fill the remaining test                    tubes with 5mL of water.
              3. Using your tweezers add a single crystal of potassium permanganate to test tube one.
              4. Gently shake the test tube until the crystal has dissolved. 
              5. Using the transfer pipette carefully remove exactly 5mL from test tube one and poor it into                      test tube two.
              6. Rinse the transfer pipette thoroughly to ensure that no purple solution remains.
              7. Gently shake the test tube two and repeat the transfer process transferring exactly 5mL of                        solution from the test tube two to test tube three.
              8. Rinse the pipette again and repeat the transfer process for test tubes four, five and six.

Dilution: A dilute solution contains a small amount of solute. At home if you were making a cup of week coffee in scientific terms you would be making a dilute cup of coffee.

Concentrated: A concentrated solution contains a large amount of solute at home if you were to make a strong coffee in scientific terms you would be making a concentrated cup of coffee

Thank you for reading my blog post about this experiment. If you have any more questions about the experiment then feel free to ask.

Science Filtration

Last week in science we had to get into groups of 3-4 for an science experiment. In this science experiment we had to try and filter some dirty water and see how clean we could get it. We got a choice of five things to filter the water with Filter Paper, Rocks, Cotton Buds, Sawdust and charcoal. We were meant to get at least three done but my group only got the rocks and the filter paper. Below is a slide with more information about the experiment.


 

English Movie Review

In English we have been watching this movie called The giver. In my opinion I thought that the movie was really good The only thing that I did not really like about the movie was the end when Jonas found the house and then it ended. My favourite part of the movie of the movie was when he left the island that they were on and went to find something. My favourite person in the movie was Jonas because I liked the way that he wanted to share his memories with the other people. My less favourite person in the movie was the leader of the island because she wanted to keep everything from everyone. I would have liked it if after Jonas restored that he had went back to see what had changed in everyone.

Health Whare Tapa Wha

Whare Tapa Wha is about the four walls of well being and how they work together. It is good to under stand about this because you need all of these to stay very healthy. I contributed by researching my side of the four walls of Whare Tapa Wha and by writing down all of the information I found. Next time i will need to make sure that I stay focused on my work so that I could get all of the information that I need. It was challenging when it came to building the walls and the roof of the house and having to write everything down. I thought that I worked well with my group and when I needed help one of my group members helped me.

Definitions

Bias: This means they pick one side more than another.
Source: It is where something comes from.
Credible: It means to convince or persuade someone to what you think.
Authority: Meaning someone has given you the authority to do something.
Reliable: Is it a reliable source of information.
Perspective: Meaning someone might see it in a different perspective
Agenda: It is some sort of list or plan of items or places.
Manipulate: By controlling someone to do something. 

What Is Critical Literacy

On Thursday the 7th of February in English we started to learn about Critical Literacy. Critical Literacy is about looking into things like books, Movies and shows. And trying to see what is true about it and if you should trust the person who wrote it. Here is one of the sites that we used to try and find out what it true and what is not. http://factitious.augamestudio.com/#/