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Showing posts with label Chemistry. Show all posts
Showing posts with label Chemistry. Show all posts

Tuesday, 7 December 2021

Making Hokey Pokey

 Aim: 

I want to find out how to make Hokey Pokey

Research:

Hokey pokey song

How to make hokey pokey

Method:

Equipment

  • Sugar
  • Baking soda
  • Golden syrup
  • Table spoon
  • Saucepan/pot
  • Cookie cutter
  • Baking paper
  • Bunsen burner
  1. Get your equipment
  2. Wash your hands
  3. Set up the Bunsen burner
  4. Put the saucepan/pot on top of the Bunsen burner
  5. Light the Bunsen burner
  6. Add 5 tablespoons of sugar to the pot
  7. Add 2 tablespoons of Golden Syrup to the pot.
  8. Melt and mix
  9. Turn off the gas and add  one tablespoon of baking soda and mix
  10. Scrape the hokey pokey on to the baking paper
  11. Let it cool for a 1min
  12. Press a cookie cutter into the hokey pokey

Tuesday, 30 November 2021

Making ginger bear

 Aim:

I want to find out how to (brew) ginger beer.\

Research:

How to make ginger beer

What is alcohol

Science of fermentation

Method:

Equipment

  • Ginger
  • Warm water
  • Yeast
  • Cup
  • Spoon

Instructions

  1. Get the equipment.
  2. Put 1 tablespoon of ginger in the cup.
  3. Half fill the cup with warm water.
  4. Add 1 teaspoon of yeast.
  5. Mix all together.
  6. Leave it to ferment for one week.
  7. After one week, taste it.
Results:

Thursday, 18 November 2021

Red Cabbage Indicator

 Aim: I want to find out how red cabbage can tell a liquid is an acid or a base

Research:


Method:

Equipment: 
  • Hydrocholric acid
  • Sodium hydroxcide
  • beaker
  • test tubes
  • test tube rack
  • red cabbage
  • Dropper


instructions

  1. Rip red cabbage into small peices
  2. place in hot water
  3. Mix around for a bit
  4. Do three squirt with your dropper into each of the test tubes
  5. Pour acid base into the big tube on the right
  6. Pour the base into the big tube on the left
Results: The test tubes changed colours when you pour the acid/base into the test tubes to make different colours.

Red Cabbage Indicator Colors : Chemistry Experiment for Kids to do at Home  - YouTube


Thursday, 11 November 2021

Making Sherbert

 Aim:

I want to find out how to make sherbet.

Research:




Method:

Equipment
  • Popsicle stick
  • Citric Acid
  • Baking Soda
  • Raro
  • Paper
Instructions
  1. Get your equipment
  2. Wash your hands
  3. Put the paper on your table
  4. Get a pile of the three powders
  5. Using your Popsicle stick mix some of each powder
  6. Taste the sherbet
  7. If theirs too much baking soda add more citric acid
  8. If theirs too much citric acid add more baking soda
  9. To improve the taste add more Raro
Results:




Discussion

Why did the sherbet not foam on the paper but it did in your mouth? 

What was the chemical reaction in the sherbet? Carbon Dioxide, Sodium bicarbonate

What type of chemical reaction is this





Thursday, 4 November 2021

Blind Taste Testing

 Aim:

I want to find out if food tastes differently when you cant see or smell.

Research:



Method:

Equipment
  • Mystery food
  • Blindfold
  • Popsicle stick
Instructions:

  1. Get your equipment.
  2. Wash your hands.
  3. Put on your blindfold.
  4. Pinch your nose.
  5. Get your food and eat it.
  6. Unblock your nose.
Results:

Unknown foodFirst tasteLast tasteFood guess
1
It was sweet in the middle of my tougne
Sugar
2
It was sallty in my tougne
Salt
3
Bitter and disgusting
Powder
4Super sourCitris acid
5
Bitter and crunchy
Gerkins
6
Crunchy and weird taste
Potato
7Nice and juicyapple
8
juicy and crunchy
Pear
9
Stale and strawberry
Stale marshmellow
10
crunchy and chip taste
Stale burgerrings
11
Sweet and savoury
lollies

Discussion:
How do you taste food? With your tougne and taste buds
What  are the different tastes? Salty, Savoury, Sweet, Sour, and bitter
Where are the different taste buds on your tougne? Sides, middle, front and back
Does smell affect your taste? No


Tuesday, 26 October 2021

Eating Hot Chilli

 Aim:

I want to find out how to get rid of the burning chilli off my tongue.

Research:



Equipment
  • Popsicle stick
  • Chilli
  • Coca-cola
  • Milk
  • Timer
  • Water



Instructions:

  1. Get your equipment.
  2. Scoop some chilli onto your stick.
  3. Start the timer and eat the chilli.
  4. Stop the timer after 4 mins.
  5. Rate how hot your mouth is.
  6. Do experiment again but drink water after 2 mins.
  7. Do experiment again but drink Coca-cola after 2 mins.
  8. Drink milk.
Results:

Without water or drinks 10/10

With water it was a 8.5/10

With coke it was a 11/10

With milk it was a  5/10

Discussion:

Why does chilli burn your mouth? Capsaicin 

Why did the milk reduce the burn? Casein






Tuesday, 19 October 2021

Bacteria around our School

 Aim:

I want to find out what type of bacteria are around our school.

Research:


    

Method:

Equipment

  • Cue tips cotton bud
  • Agar Plates
  • Marker Pen
  • Cellotape

Instructions

  1. Get your equipment.
  2. Wash your hands.
  3. Use a marker pen to write your name and location on the lid.
  4. Wet the cue tip and swab the surface.
  5. Gently swab the agar plate.
  6. Tape around the edges of the agar plate.
  7. Put the agar plate in an incubator over night.
  8. Observe the plate the next day.
Results:

White: Ecoli (poo bacteria)
Yellow: Strep throat (throat infection)
Pink: Salmonella (food poisoning
Red: Meningitis (Brain infection)













Wednesday, 7 July 2021

Mentos

 Aim: 

I am trying to fiind out how many bubbles are made when Mentos is dropped in Coke.

Method:

Equipment

  • Coke, Coke Zero, Sprite
  • Mento's
  • Measuring Cylinder (100mL. and 10mL)
  • Small beaker
  • Saftey Glasses
  • Detergent
Instructions:

  1. Get equipment
  2. pour your Coke, Coke Zero, Sprite into your measuring cylinder - to 20mL
  3. Then pour 5mL of detergent into the measuring cylinder with your beaker
  4. Put Mento's into measuring cylinder 
  5. Mesure bubbles
Results:

CokeCoke No SugarSprite
Height of bubbles45mL45mL50mL

Conclusion: 

I found out that the more detergent the more the fizz and Sprite fizzes up more than Coke, and Coke Zero.

Wednesday, 23 June 2021

Edible Slime

 Aim: 

I want to find out how to make edible slime.

Method:



Equipment

  • marshmallows
  • Popsicle stick
  • paper cup
  • microwave
  •  icing sugar
  • vegetable oil


Instructions

  1. Get equipment
  2. Pour marshmallows into cup
  3. Put the cup of marshmallows into the microwave for 10 seconds at the lowest heat setting
  4. Pull cup out of microwave
  5. Stir the marshmallows in the cup







Results:

My slime was soft at the start when I heated it up

The second time I heated it up it was crusty because I keeped it on for a while.

Tuesday, 22 June 2021

Skittle Colours

 Aim: 

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

Method:

Equipment

  • Petri Dish
  • Skittles
  • Warm water
  • Small Beaker
Instructions

  1. Get your equipment.
  2. Spread out the Skittles around the edge.
  3. Gently, pour the warm water into the middle of the petri dish.
  4. Observe what happens.
Results:











Discussion:

Why did the colour leave the Skittles? 

The sugar coating dissovled in the water.


Thursday, 10 June 2021

Gummy Bear Osmosis

Aim: I want to find out what happens to Gummy Bear when left in liquids.

Mehod: Equipment

  • Gummy bears
  • Liquids - water, salt water, sugar water
  • Electronic scale
  • 4x petri dishes
  • Marker pen
Instructions 

  1. Get equipment.
  2. Get your petri dish and write down your name and type of water - water/salt water/sugar water/dry on the petri dish.
  3. Weigh the gummy bear.

Tuesday, 18 May 2021

Hands on Fire

Aim: 

I want to find out how to set my self on fire - SAFELY!

Method:/

Equipment

  • Large container of water
  • Detergent (Liquid Soap)
  • Hose
  • Gas
  • Lighter
  • Safety
Instructions
  1. Get the equipment.
  2. Fill the container with water 2 cm deep.
  3. Put some liquid soap in the water and gently mix it around.
  4. Connect the hose to the gas tap.
  5. Turn on the gas and bubble it in the water.
  6. Roll up your sleeves past your elbows or take your jacket off. 
  7. You are going to wet you hands and arms with water.
  8. With 2 hands scoop the bubbles but not the water.
  9. Take two steps froward away from the try.
  10. Then you light the bubbles on fire.
  11. Then to get rid of the fire open up both hands and give a high five gesture with both hands.
Results:

It felt hot when you left it there for a bit.
It smelt when the flame went up in the air.
I could hear the flame go "boof" up into the air as soon as I released my hands.





Wednesday, 5 May 2021

Safety in the Lab

 Rules

  1. You  must follow the instructions given by the teacher.
  2. You must not enter the lab without the teacher.
  3. Report any breakages.
  4. Shoes must be worn at all time.
  5. Do not eat or drink in the lab.
  6. If you spill something tell the teacher and then clean the spill up.
  7. Wash your hand after doing experiments.
  8. A heat proof mat should always be use when heating.
  9. If in doubt, ask the teacher.
  10. Never taste or smell chemicals.
1. Liquids do not go into the bins, because..... they will go down the sink.
2. Solids do not go down the sink because.... it will block the sink up.
3. Wear safety glasses when you do experiments,
because.... things could go wrong and explode.
4. Put your chair under the desk, and stand at the bench.
when you do experiments, because...it could trip up students when they walk.
5. Bags do not go on the desks, because... that's where you do the experiments at.
6. Long hair should be tied back, because... it could burn .
7. Do not smell the chemicals, because... you could pass out or faint when you inhale
8. Walk, don’t run around the room, because... you could break a bone, get hurt or break the equipment if you trip over.
9. Do not eat or drink in the lab, because... it could contain chemicals on the food and when you eat food the chemicals will enter your stomach.