Dilution

Hello everybody, this chemistry we are experimenting with Serial Dilution. The picture below is the aim and the instruction about our experiment.

• Which was most dilute?  least concentrated 

The most dilute one is the last on because it has been passed and passed until the end and makes it weaker or dilutes more.

• How do you know it's more Dilute and Concentrated? Explain?

I know this because of how transparent or less colour they have meant that it's more diluted. The stronger the colour is mean its more concentrated 

Here are the pictures that we took.

Esol - Halloween Project

 Hello everyone, this week we are working on our presentation about the scary myth about our own culture. I had a lot of fun making the short film because my teammates Janel and Shiela made it fun while filming. It was a bit stressful to edit because I don't really know what I would put fo the caption. If we had more time editing it, I would make some changes to the voice-over because it didn't really explain about the lady in white. Here is the video I made with my teammates and I hope you like it.

So if you don't really understand the story I will just explain it to you. The story is mainly about the lady in white, the lady in white usually seen at night and in the morning. The lady in white usually is seen if they need your help or there is something about you that they hate or they are part of your family. You can find a lady in white in rural places or tragedies places. That is all the information I have about The lady in white I hope you like the video and have a nice day.

    

Bag making - Textiles

 Hello everyone, this textile we have been working on the bag we are making. I haven't started sewing my bag yet but sooner I will, I only have cut the stakeholder one bag and I'm still working on what would stakeholder would have. 

Stakeholder 2 should have looked like this, but we don't have any materials that are pink and blue.

Stakeholder 1 should look like this and I don't have to change anything, I just have to sew it and put the details on it.

     

Gymnastics - P.E

Hello everyone, this P.E we are doing gymnastics, We learnt how to cartwheel, bear roll, the beam and the trampoline. We take photos of us doing the activities in gymnastics. We got better doing the trampoline and at the mat where you do front roll cartwheel and stuff. I have to practise more on the beam because I'm a bit scared of hight. Here are the pictures and videos we took.

Filtration Experiment

Hello everyone, Today we are doing a filter experiment. We have a filter paper to filter the chemical we are experimenting, and no we can't drink it because we don't know if it's clean. At first, we have to put the blue transparent liquid and the name is copper sulfate. We add the transparent chemical which is sodium carbonate. when we stirred it looks like a blue opaque liquid.

 Aim: To Separate a solution from a precipitate (precipitate is the name for a solid that forms in a liquid during a chemical reaction).

Hypothesis: what do you think will happen...

I think that the dirty things to the chemical will stay at the filter paper and the bottom will be clear.

Method: 

1. Pour approximately 50mL of copper sulfate solution into a beaker.

2. Add the same volume of sodium carbonate solution. A reaction will happen, you should see a cloudy blue precipitate form. Called copper carbonate. 

3. Watch demo then fold filter paper to fit inside the funnel

4. Place the funnel with the filter paper inside of it, into the mouth of a conical flask. 

5. Stir the mixture in the beaker, then carefully pour it into the funnel. 

6. Observe what happened.

Observations and Discussion: what you saw happen and why do you think it happened...

The liquid turns to transparent and there are some left blue thing left at the top of the filter paper. 

Equipment:

Sodium carbonate

Copper sulfate

Conical flask

Stirring Rod

200mL Beaker

Funnel

Filter paper

Wananga - Niuean and Tokelau language week

 Hello everyone, today we are researching about Niuean and Tokelau language week, we have to know some simple phrases like a good morning, I didn't finish Tokelau so I have to do it next week, today I will show the slide I made for Niuean. 

Hurumanu 3 - Chemistry Mixing and dissolving

 Hello everybody, so today we are learning about Mixing and dissolving, we have to find how who move faster in what temperature. 

What are the ideas from today? The idea for today is to mix and dissolve or to know what temperature to dissolve the sugar first. 

What factors effect dissolving?

Experiment: Aim, method, result

Aim: Rate of dissolving depending on temperature and stirring. 

Method: In this experiment, we have to have 2 beakers one is small and one is big. We also need a spatula to put the sugar in the water and also for mixing. The first one we did was to put the big beaker cold water and this has to be in 50ml, We have to stir it, We also have to time it the same as we put the sugar and stop when the sugar has dissolved. The second one is the same thing but we have to put hot water, it also has to have the same water as the first one and the amount of sugar we put. The third one is the first one but we can't stir it. The fourth one is the same as the second one but we also don't need to stir it.

Total and average time: Coldwater + mixed= (total) 490sec (average) 70sec |  Hot water + mixed=(total)  213sec (average) 27sec | Coldwater + No stirring=(total) 622sec (average) 24.4sec |  Hot water + No stirring= (total) 590sec (average) 98sec

Why the result happened? 

The hot water gives more energy to the particle and moves around more and the cold water make it slower and that's why the cold water is taking a long time to dissolve.