Diffusion - Hurumanu 3

What is our focus this week? Our focus is to learn more about matter or how to properly define Diffusion...

Aim: Investigate if particles diffuse faster in hot or cold water.

Hypothesis: I think... I think that the hot water will diffuse or make the Potassium Permanganate will spread faster in the hot water...
Because the hot water would make the particles move faster than the cold water.

Method: Fill up 2 Petri dishes with water, one hot one cold then drop potassium permanganate in both of the Petri dishes, then wait for your result-( Do Not Stir).

Particle Theory:
1. Particles make up everything

2. Particles are always moving

3. Particles are attached to each other

4. Hotter= faster

5. Colder= slower

6. Always space between particles

 



Results: The dish with the hot water spread more because of how fast the particles where moving...

Discussion: I think it happened because when particles are in a hot environment it tends to move faster than when it is in a colder environment...

Hurumanu - Evaporation, Condensation, Distillation...

Introduction: Today we did an experiment on Distillation, Evaporation, and Condensation, and it was also a really good day...

Aim: To separate a solute from a solvent in a solution using distillation.

Equipment: Solution Of Coke, Conical Flask, Heat Proof Mat, Delivery tube, Bunsen burner, Tripod, Gauze Mat, Bosshead & Clamp, Boiling tube, Retort stand.

Method:
1. A mixture of coke and water was heated in a conical flask…
2. The water evaporates leaving the coke behind…
3. The water vapor flows through the delivery tube…
4. Heat the solution until most of the solvent has been evaporated. Turn off your element…

Results: We saw that the coke started to bubble because of the heat of the element, then at the end of the experiment there was syrup at the bottom.

Discussion: What or how we did for this experiment... We used a Conical Flask to hold our Solution Of Coke, then we boiled it with an element we then evaporated the Coke, and we got vapor out of it, then we used a delivery tube to get the vapor to travel into a boiling tube because the delivery tube was connected to a conical flask and a boiling tube, we then used Condensation, we got ice and put it in a beaker and put it just below the boiling tube, to cool it down, the coke then turned into a syrup-like substance, it as the leftover sugar from the coke, The boiling tube was then filled with water from the vapor...

Conclusion: Did it work? In conclusion, it did work and we ended up with a dark like syrup on the bottom of the Conical Flask...

Hurumanu - Evaporation Experiment - 2020

Introduction: We have been learning about
Evaporation is... It is when a liquid is turned into a gas.

Aim: The aim is to Evaporate Copper Sulfate- (blue liquid)...
To separate the mixture...

Solute? Solvent? Solution? Mixture...

Hypothesis: I think what will happen is the (Blue Liquid) in the Copper Sulfate will somewhat disappear a little, there will probably...

Equipment: Copper Sulfate Solution, 250ml beaker, Heat Proof Mat, Evaporating basin, Element.

Method:
1. Set up Element...
2. Add 100ml of hot water to the beaker and place it on the element...
3. Add Copper Sulfate to the evaporating basin until it is quarter full...
4. Carefully place the evaporating basin on top of the beaker...
5. Turn on the Element to 2, maybe in a while bumping the element up to 6...
6. Heat the Solution until most of the Solvent ha been evaporated and crystals of solute forming...
7. Turn off the element- be careful of the beaker, it will be hot for a while...

Observation: As time goes by we see that inside the beaker there where bubbles forming, and maybe a few drops of water & you can slightly hear the small bubbles popping or the sound of boiling happening...

Conclusion: In conclusion, our experiment did not work, but we think we have an idea for the next time around...

Evaluation: It was fun but, it didn't go as planned but now we see that we may need to adjust some things next time around...

Hurumanu - Dilution Experiment...

For science this week I or my group did an experiment on Dilution -(Meaning: Making a liquid less concentrated or weaker)
We did this dilution experiment because or to explain or learn how dilution works, we were doing something or using a method called Serial Dilution...
It means we repeated this process for a while...

Aim: To make a dilution series to investigate concentration...

Equipment: A Potassium Permanganate crystal, Six large text tubes, Tweezers, A plastic transfer pipette, A test tube rack, 10ml measuring cylinder, Spatula...

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

Health Hurumanu 8 - Online relationships vs Real life relationships...

In Health Hurumanu we discussed this week about a statement: -

Online Relationships vs In Real Life Relationships and to be more clear, we are talking about them because we don't know if they are important or not...

We are making a statement or debating about what is more important, Online Relationships, or are Real-Life Relationships more important...

Some people might think...
They might think that Online is way more important because of how people can react on social media, about how it could change the moods on others, It also could be important for people could get hurt emotionally or mentally...

Also another view on this topic... there also might be some words you could get confusing if someone just says "ok" you wouldn't know their emotions, also there are strangers - (People You don't know) everywhere -(Catfishing)...

People might think that Real Life might be important, it could be easier or to communicate, face to face it would be easier to read their body language, you could express more, you would would be able to communicate more expressively I guess...  

Or one other way of seeing it or on the other hand... 

maybe talking face to face could be scary, or you could be shy something bad could happen...

In Conclusion, I think... That they both are really important because having friends and having a face to face talks with family is very special, while having an online friendship, could also be good...

But I'd have to say Real-life relationships are a lot more important, for a lot of reasons but the main reason I chose real-life is that you could get to hang out with others, or you would be social sometimes, its kind of interesting having others around, being able to read or tell their body language...

Year 9 Hurumanu Chaos - Rats/Kiore

Mouse Plague...
Saying-"Can cause so much Chaos..."

Questions:
1. Where this happens?
AU/Australia 

2. How did this happen?
The rain helped grow crops to grow on the farm, therefore a lot of Mice got hungry, then they would eat from the farm...

3. How much offspring-(Babies) can 2 mice/rats parents make?
2000 could be made...

4. How much wheat did the mice eat?
500,000 tons...

5. How did they get rid of the mice and how many dead mice where there?
they used poison to take the mice down, then they burned them to not have dead mice everywhere - 100Million mice died...

Rat Temple...
Saying-"Sometimes rats can be not so chaotic..."

Questions:
1. Where is this happening?
Northern India...

2. Why is this happening?
The people of Northern India, worship the rats as an old god...

3. What special treatment do the rats get?
Northern India, - Rats temple...
The rats are fed, not killed, prayed to, & worshiped...
The rats are relatives, to the people in Northern India, the belief a lot in reincarnation...
if you stood on one, it would anger the gods... 

Filtration Experiment - Hurumanu 3...

• What are we doing? Today in Hurumanu We are...

In Hurumanu 3 this week we will be doing a Filtration Experiment...

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

Equipment:

Sodium carbonate, Copper sulfate, Conical flask, Stirring Rod, 200mL Beaker, Funnel & Filter paper...

Hypothesis: what do you think will happen...

Method/Steps: 

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... - What I think happened was that when the -

Sodium Carbonate-(Na2CO3) & the Copper Sulfate-(CuSO4) mixed together & I thought it wouldn't be filtered or couldn't be filtered, but I was wrong, we used a funnel with a conical flask, and we had a special filter paper to stop the Copper Sulfate-(CuSO4) from mixing the into the Sodium Carbonate-(Na2CO3) or it seperated some would say, and it was quiet satisfieying too...

Here are some of the results...