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Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Friday, December 10, 2021

Science T4 - Making Honeycombe

 Aim:

I want to find out how to make honeycombe.

Research:

ELMOOOOOO

How to make it

Method:

Equipment

  • 5 tbsp or tsp of sugar
  • 2 teaspoons of golden syrup
  • half tsp of baking soda
  • pot 
  • Bunsen burner equipment (tripod, gauze mat and heat mat) or stove
  • spatula
  • baking paper
Instructions

  1. Get your equipment.
  2. Wash your hands.
  3. Add your sugar and golden syrup to the pot.
  4. Set up your Bunsen burner.
  5. Use a blue flame.
  6. Melt then boil the sugar for roughly two minutes.
  7. Turn off the gas.
  8. Add the baking soda and mix.
  9. Tip out the honeycombe onto the baking paper and let it cool for approximately 5-10 minutes.
  10. Clean up your equipment, and that is the final instruction for 2021.
Results:

Discussion


Friday, December 3, 2021

Science T4 - Ginger Beer

 Aim:

I want to find out how to brew ginger beer.

Research:

https://www.youtube.com/watch?v=WjifwNexix0

https://www.youtube.com/watch?v=YoWVQxuYv4Y

https://www.youtube.com/watch?v=DsQNmXVIxQk

Method:

Equipment

  • ginger
  • disposable cup
  • water
  • teaspoon and tablespoon
  • lemon juice
  • yeast
  • sugar
Instructions
  1. Get your equipment.
  2. Put your name on a disposable cup, preferrably plastic.
  3. Put half a teaspoon of ginger into the cup.
  4. Add half a cup of water into the cup.
  5. Add one tablespoon of sugar into the cup.
  6. Mix with a spoon.
  7. Add 5 drops of lemon juice to the cup.
  8. Taste it and adjust the flavour to perfection.
  9. Add 1/4 of a teaspoon of yeast.
  10. Let it brew for a week.

Results:

When I added the ginger to the lemon juice, it sort of looked like diarrhoea. When you mix it, it does not lose its brownish color but most of the ginger dissipated. When you add the yeast, the yeast will not dissipate easily. 

TASTE TEST:

It was absolutely horrible and I have nothing more to say about it.


Discussion:

The yeast (micro organism), a living thing, is going to try to "eat" the sugar and when it does, it will release a gas called carbon dioxide (CO2), and effectively, it is going to excrete (poop) out some Alcohol. CO2 is the same thing humans breathe. This process is called Fermentation. This is the same thing that happens while making bread. When the yeast excretes, it will form bubbles on the bread from the CO2. This full process is called Respiration.

The best conditions for brewing ginger beer is in a warm place and let it sit for approximately a week. The optimal temperature for proper ginger beer brewing is 21-29 degrees celsius.

Friday, November 19, 2021

Science T4 - pH Colours

 Aim:

I want to find out what the colours of pH are.

Research:




Method:

Equipment
  • Test tube rack
  • Test tubes
  • Base - Sodium Hydroxide
  • Acid - Hydrochloric acid
  • Funnel
  • Universal Indicator
Instructions
  1. Get your equipment.
  2. Place the test tube rack in front of you on a table, with the test tubes in their respective places.
  3. Put 10 drops of Universal Indicator into each test tube.
  4. Watch what happens to the color.
Results:

Discussion:

1. What is an acid?
An acid is a toxic substance that is used in many science experiments all over the world. If you pour it into water, it will make it red.

Thursday, November 4, 2021

Science T4 - Making Sherbet

 Aim:

I want to find out how to make sherbet.


Research:


Method
  • Equipment
  • Raro
  • Citric acid
  • baking soda
  • water
  • popsicle stick
  • little cup


Instructions
  1. Get 3 separate piles of raro, citric acid and baking soda.
  2. Put some into your cup.
  3. Mix it together with your popsicle stick.
  4. put water in it.
  5. D R I N K

Results

When you add each thing into the cup and mix it, it creates a different taste. The more citric acid you pour, the more sour it gets. The more raro you pour, the more flavor it gets.


Discussion

Why did it foam?

It started foaming because the baking soda was put into it, which mixed with the citric acid. This then made the atoms in the acid recombine into carbon dioxide gas that made it fizz up.





Thursday, October 28, 2021

Science T4 - Blind Taste Testing

 Aim:

I want to find out if food tastes differently when you can't see or smell.

Research:






Method:

Equipment

Hands

Blindfold (OR SCARF)

mystery food


Instructions

1. Get your equipment

 2. Wash your hands.

3. Put on your blindfold.

4. Put your hand out for food

5. Pinch your nose with the other hand.

6. Eat the food and chew it.

7. Guess what the food is.

8. Release your nose and taste the food.

9. Where does the food react on your tongue?


Results: 

Food #1. I think it was sugar because it felt like there were a lot of small sugar pieces.

Food #2. It was 100% salt. There was no difference when my nose was pinched and unpinched.

Food #3. It felt and tasted like baking powder.

Food #4. It was definitely citric acid.

Food #5. It was a sour lolly. It felt very squishy, and I could slightly taste the citric acid in my mouth.

Food #6. It was half a burger ring. It was very crunchy and jagged.

Food #7.  Dry Marshmallow. It felt quite dry and hard. 

Food #8. 100% apple slice. 

Food #9. It was a gummy bear. 2nd favorite lolly! :D

Food #10. It was a pear. 

Food #11. IT'S DAIRY MILK CHOCOLATEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!

Food #12 (final food) EW ITS LEMON EW EW EW EWWWWWWWWWW (I spat it out into the trash)


Discussion 

Is there a difference between blocked and unblocked nose taste?

Yes, because when your nose is blocked it cuts off taste buds that are in your nasal cavities, and it also kills your sense of smell. You therefore cannot determine the food that easily.








Thursday, October 21, 2021

Hot Chilli - Science T4

 Aim:

I want to find out the best way to cool down your tongue after eating hot chilli.






Method:

Equipment

  • Hot Chilli Sauce
  • Popsicle Stick
  • Drinks - Soda, Water, Milk
  • Timer
Instructions

1. Get your equipment ready.. obviously.
2. Get a drop of hot saucy on your Popsicle stick.
3. Lick the Hot Chilli sauce.
4. Optional - swirl the sauce around your mouth.
5. Start the timer.
6. After two minutes, drink your soda, milk or water.
7. After five minutes, how hot is your mouth?
8. Repeat the experiment but with a different drink.


Results:

The Carolina Reaper lives up to its name. 

After the first chug of water and the first dose of the death, I rated it a 10 for burning.

After the second time, I scored it a 10. 

After the third time, with coke, I scored it a 9.5.

After the fourth time, with milk, I scored it a 0.5.

Discussion

Why does chilli burn your mouth? 
The alkaline (oil based molecules) triggers the temp sensitive pain receptors in your mouth which then sends a message to your brain that is basically screaming "IT HURTS, IT HURTS!!".
Why did the milk reduce the burn?
Milk hosts a handy protein called casein, which helps dissipate the alkaline in the chilli, thus killing off the taste quickly. 
        


Friday, July 9, 2021

Mentos and Coke experiment!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 Aim: 

I want to find out what happens when you drop mentos into coke.

Research

https://www.youtube.com/watch?v=uBq3f5nRr5U 

https://www.youtube.com/watch?v=n4MLPkTrOq4

Method:

Equipment

Coke bottle (no sugar) (size optional)

Pack of mint mentos, optional size (The more size, the more craziness!)

Towel (paper or not is optional)

Detergent

You could either use coke no sugar or sprite.

Remember, if it's a big pack of mentos, it has to be a big bottle of coke.

Instructions

1. get your equipment

2. put on your safety glasses

3. pour some coke into test tube or cup

4. place a towel under the cup

5. place the mentos into the test tube or cup

6. observe

Results

In the coke bottle, the surface of the mentos is rough, and that allows the bonds between the carbon dioxide gases and the coke, to break easier, helping the creation of carbon dioxide bubbles as the surface of the lolly is dissipating into the coke while the coke is busy fizzing about. Because the mentos are rather dense and collect moisture, they sink through the coke while dissipating and becoming a part of the coke which triggers a large bubble build up.

This was also the last science period until term 4, I'll miss you mr stock


Thursday, July 1, 2021

Milk Plastic

 Aim: I want to find out how to turn milk into plastic.

watch this and i'll give you cookies

Method:

Equipment

  • Oven or stove
  • Measuring cup
  • tablespoon
  • a cup of milk
  • pot or microwaveable container
  • white vinegar
  • paper towels
  • spoon mug
  • optional - food colouring, glitter       
  • teaspoon
  • plate or petri dish
  • plate
     instructions

pour a cup of milk from a measuring jug (if you were using a jug like THIS - 

you would want to pour about 600mLs) into a pot or microwaveable container. if you're using a beaker then you pour 200mLs.

then, you heat the milk in a microwave or on a stove until it is steaming. 

put it on a bench or something and add four teaspoons of vinegar to a mug.

add the hot milk to the mug with the vinegar

once the milk is added and the vinegar has taken its effects, stir the milk with a spoon

stack four layers of paper towels on a surface that is safe to get damp

scoop out the curds with a spoon and place them on the paper towels

fold the paper towels over the curds and pres down on them to absorb any excess liquid

knead all the curds together into a ball of dough

once you're done, mold and colour the dough as much as you like 

if you want to, add glitter

put the dough on a plate or Petri dish and let it settle overnight

and you've done it!



Thursday, June 24, 2021

SKittle Colours

 Aim: 

I want to find out what happens when you put skittles in water.

Method:

Equipment

  • 8x SKITTLES
  • warm water
  • beaker
  • petri dish
  • paper towel

Instructions

  1. get your equipment
  2. put the skittles into the Petri dish
  3. spread them around the sides
  4. clean the beaker and dry it
  5. gently pour the water into the middle of the Petri dish
  6. observe how the skittles react.


This was a very fun experiment all in all.
Results: the skittles leaked their colours into the middle of the petri dish as soon as the water was tipped into it, and the only colour left in them was at the top where they could not be submerged by the water. That's called diffusion. As a result, most of them appeared to take a crystallised form. But, the reason the colours didn't MIX while they were taking the travels to the middle of the dish is because of something called water stratification.   That is the reason. The reason that the bottom half of the skittles will appear crystallised is because of the skittle's coating (called Shellac) being ripped off the lolly by the water along with the colour. It will also feel bumpy as it takes on the form. (don't take that the wrong way please. if you do that's not my fault)

The water also tasted very sugary because of all the colour of the skittles going into the water, obviously, and the colours have sugar in them. That's my explanation.

Well, I don't know what else to say, apart from this MAY have been the most enjoyable experiment I've done yet. Maybe apart from the edible slime one, but as I'm writing this I don't know.

I hope you enjoyed reading this longer than average blog and I'll see y'all next week probably. 

published at 1:43am NZST


Thursday, June 10, 2021

edible slime

 I want to find out how to make edible slime without getting poisoned. Here's a video I found on how to do it with certain recipes. https://www.youtube.com/watch?v=n2Zh0YCr81Y


Method:

Equipment

bowl

spoon

marshmallows

cornflower

Instructions

put around 15-40 marshmallows inside a bowl or paper cup and put them in the microwave for 30 seconds

get them out after 30 seconds and start stirring and mixing the marshmallows together until they're kind of like goo

add two tbsp of cornflour and mix it into the marshmallow-y goo

if you would like to change the colour of the slime, add a tsp of food colouring

start kneading the marshmallow goo

make it into a ball

make it into whatever shape you want and now you can eat it! :D

published at 4:45pm NZST

FINISHING RESULT: 




Friday, June 4, 2021

Gummy Bear Osmosis :)

Aim: 

I want to find out what happens when gummy bears are put in liquids.

Method:

Equipment:

Salt water aka Sodium Chloride (NA on the periodic table of elements) 

Normal water aka H2O 

Sugar water aka Sucrose aka Sugar Cane 

SOUR HARIBO GUMMY BEARS HAYEEEEEE (or any gummy bears)

Two Petri dishes      

Marken pen

Electronic Scales

Safety glasses

INSTRUCTIONS:

  1. Get your equipment   
  2. Wear safety glasses
  3. Get your marker pen, and write your name and the conditions, AND the weight of gummy bears.
  4. Do the experiment yeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Finishing results: 

Without Difference:
With Difference:
My sugar gummy gained the most weight out of the two. WHY? Because the gummy bear, before the sucrose was added into the Petri dish, had a low concentration of water to begin with. Then, when the sucrose was added, the small holes in the gummy did not allow large amounts of sugar molecules into the gummy bear, only a few could enter at a time, but the little water molecules could enter large amounts at a time, so over the night a lot of water molecules got in, and only a small amount of sugar molecules entered the gummy. It only really TASTED like sugar was in it because the colour of the gummy bear (red) had dissolved into the sucrose and the gummy was in the sucrose for the night. And the dry gummy only gained a little bit because of the dust that built up on the surface of it.


Monday, May 31, 2021

How to Light a Bunsen Burner

 Aim:

I want to find out how to safely light a Bunsen Burner.

Method:

Equipment

  • Bunsen Burner
  • Heat mat
  • Gas
  • Matches or lighters
  • Safety Glasses
Instructions:

https://www.twinkl.de/teaching-wiki/bunsen-burner          teacher told us to link it idk

1. get equipment

2. put on safety glasses

connect the hose to the gas tap

turn the collar to close the air hole

turn the lighter and hold it over the barrel

turn the gas on

turn the collar to open the gas hole

you have fire

when you are done make sure to eliminate all flames then turn off the gas





Friday, May 21, 2021

Science - Hands on Fire

Aim: 

I want to find out how to light my hands on fire SAFELY.

The Method: 

Equipment

  • gas 
  • lighter
  • water
  • tray
  • hose
  • liquid soap
  • safety glasses

Instructions

  1. get the equipment ready
  2. fill the tray with water
  3. put soap in the tray
  4. put the liquid soap in the water and gently mix it around 
  5. connect the hose to the gas tap and make bubbles of gas
  6. wear safety glasses
  7. put water on your hand and arms up to your elbows
  8. scoop the bubbles with both hands, but make sure not to scoop up the water since you already have some

  • take two steps forward
    1. hold the bubbles as FAR away from your face as possible 
    2. get the teacher to use the lighter on the bubbles
    3. L I G H T  Y O U R   H A N D S  O N  F I R E  


    Results:
    heres a video of bryce lighting his hands on fire
    I saw fire.
     I heard flames roaring to the ceiling.
    I smelt smoke.
    I felt a lot of heat.

    Monday, May 10, 2021

    safety in da lab

     1. Liquids do not go into the bins, because they could stick to the material in the bin, then when they would be emptied into the trash and sent to landfill, they would seriously pollute the landfill.

    2. Solids do not go down the sink because they will poison all the water ways, and if someone drinks it, there is a high chance they will die.

    3. Wear safety glasses when you do experiments,

    because something could squirt into your eyes and it wouldn't be very nice.

    4. Put your chair under the desk, and stand at the bench

    when you do experiments, because if you have your chair out, if something goes wrong, it would leak onto your seat.

    5. Bags do not go on the desks, because if something leaks, it could go in your bag.

    6. Long hair should be tied back, because you can dip your hair in something and you could either have hair loss or your hair could light on fire.

    7. Do not smell the chemicals, because you could pass out and some could even melt the membranes of your nose.

    8. Walk, don’t run around the room, because you could trip over and sprain, dislocate, or break a bone,

    9. Do not eat or drink in the lab, because you could poison yourself by touching other chemicals and the food.