Gummy Bear Osmosis

 Aim: 

I want to find out what happens to Gummy Bears when we put them into different liquids. 

Prediction: 

I think that the Gummy Bears will large up or get smaller and taste different because of the liquids. 

Method: 

Equipment 

• 3 solutions - water, sugar and salt
• 4 Gummy Bears of the same colour
• 2 Petri dish 
• Marker/Pen
• Electronic Balance
• Measuring Cylinder
• Beaker

Instructions 

1. Collect your equipments
2. Label the Petri dish with dry water, salt water and sugar water
3. Weigh the Gummy Bears and record the weight on the Petri Dish
4. Add 40ml of the solution onto the Petri dish

Results: 

(before) 

(after ruesults) 

	Dry	Water	Sugar Water	Salt Water
Starting Weight	5.58g	5.58g	5.58g	5.58g
Final Weight	5.41g	6.93g	6.57g	6.15g
Weight Change	0.17g	1.32g	0.99g	0.57g
Final Volume	0ml	32ml	23ml	21ml
Water lost	0	8	17	19

Making Ginger Beer

Aim:

I want to find out how to make ginger beer

Research:

 
 Method: 

Equipment:

• A Cup
• A Tool To Stir 
• Luke Water 
• Sugar
• Ginger
• Lemon Juice 
• Yeast 
• Tea spoon
• Table spoon

Instructions:

1. Get your equipment 
2. Add some yeast into the cup
3. Put a teaspoon of sugar into the cup
4. Pour 150ml of luke water into the cup
5. Mix the concoction together with the mixing tool
6. Add a little squeeze of lemon juice into the cup
7. Put 2 teaspoon of sugar into the cup
8. Mix it again 
9. Let it sit out for 24 hours
10. Taste and describe it

Results:

When I took a sip, it tasted a little bitter and I could still feel tiny chunks of ginger 

What Is An Acid?

 The name of some acids are:

• Hydrochloride Acid
• Sulfuric Acid
• Nitric Acid
• Phosphoric Acid
• Acetic Acid
• Citric Acid
• Formic Acid
• Tartaric Acid

The shorter way to write these acids down are:

• HC1
• H2SO4
• HNO3
• H3PO4 
• CH3COOH

Where do you find Acids?

• Plaque Acid in your teeth 
• Stomach Acid is Hydrochloric Acid
• Battery Acid is Sulfuric Acid
• Lemon and oranges Have Citric Acid 
• Vinegar contains Acetic Acid
• Bee-stings have Formic Acid
• Coca-cola has Carbonic Acid

What is Acid?

An Acid contains Hydrogen atoms that break off to react with a substance  

Litmus Colour 

- Litmus paper changes colour in Acid

- It changes to a red colour 

What Is A Base?

- Acid has Hydrogen in it

- The strength of acid is measured at the PH scale

- It goes from 0 to 14

- 0 to 1 is red, 2 to 3 was orange, 4 to 6 is yellow, 7 was green, about 8 to 10 is blue, 11 to 12 is indigo and violet 13 to 14

- A base is he opposite chemical to acid 

- A base contains hydroxide (OH)

- An acid aNd a base Neutralise each other 

Red Cabbage Indicator

Aim:

I want to find out how to tell if something is an acid 

Method:

Equipment 

• Beaker 
• Red Cabbage 
• Hot water
• Test tubes
• Dropper 
• Acid + hydroxide 

Instructions 

1. Get your equipment 
2. Rip a leaf of red cabbage and rip it into small pieces putting the small pieces in the beaker
3. Pour 1ml of hot water into the beaker
4. Add about 2cm deep of acid into one of the test tubes
5. Add about 2cm deep of the hydroxide into a different test tubes 
6. Use the dropper to pick up some of the liquid from the beaker 
7. Drop the liquid into the acids 
8. Play around with the liquids (by using the dropper) to make different colours 

Results:

When I added a few drops of the red cabbage water into the acids, it turned different colours. 

Making Sherbet

 Aim: 

I want to find out how to make sherbet

Research:

Method:

Equipment-

• Container 
• Baking powder 
• Citric Acid 
• Sugar (Raro)
• Mixing tool 
• Teaspoon (ts)

Instructions:

1. Get your equipments
2. Add a ts of sugar (raro) into your container
3. Add 1/2 a ts of  baking powder into the container 
4. Add 1/2 ts of citric acid into the container 
5. Mix the powder with your mixing tool
6. Taste the sherbet and adjust the flavour if necessary 

Result:

When I ate it, the moisture in my mouth made it foamy and then it started tasting sour

Discussion:

Citric acid + Sodium bicarbonate -> Carbon dioxide 

Eating Chili

Aim:

I want to find out how long it takes to reduce the spiciness 

Research:

Method:

Equipment:

• Hot sauce 
• Toothpick 
• Stopwatch
• Water
• Milk

Instructions:

1. Get you equipment 
2. Dip the toothpick in the hot sauce
3. Suck the hot sauce off the toothpick 
4. Start timing as soon as you eat it
5. Stop the time when your mouth stops burning 

Result:

	Straight chili	Water	Coke	Milk
Time taken to stop the burning	5:30	6:00	2:00	2:50

Conclusion:

I can conclude that for me coke was the best for stoping the burn. The water was the least helpful.

Discussion:

Why does the chilly burn your mouth and why does milk stop it?

-Because of the capsaicin tricking your brain that you’re on fire

-Because of the oil and the fat

Blind Taste Tasting

 Aim:

I want to find out how we taste food 

Research:

What Are Taste Buds?

10 Fun Facts About Your Tongue and Taste Buds

Method:

Equipment:

• Unknown food
• Blind fold 
• A person with a tongue

Instructions:

1. Take your equipment 
2. Wear your blind fold on 
3. Hold your noise
4. Place the food on your mouth and taste it
5. Describe how it taste
6. Release your noise and describe the flavour 

Result:

Food #1

When I ate the food it tasted (with my noise blocked) sweet and crunchy and when I took my hand away from my noise I tasted an apple

Food #2 

After I ate it, it felt crunchy too and bitter and when I unblocked my noise, I straight away knew what it tasted like, it tasted like an onion

Food #3

When I ate it, I tasted nothing but was still crunchy however when I took my hand out, I felt like taking it out because it tasted like a raw potato  

Food #4

It’s tasted sweet and felt sticky and when I took my hand out it tasted like a raspberry gummy candy 

Food #5

This one tasted sweet but a little sour afterwards 

Foods #6

This sixth one tasted really sweet and would make sense since it was sugar 

Food #7

When I ate it, it tasted salty and unfortunately I was correct

Food #8

As soon as I ate it, I couldn’t handle it already and when I let go I wanted to spit it out since it tasted like baking soda

Food #9

This last one tasted sour and that guessed was a good cause it was sour

Food #10

Never mind this one is the last one and it tasted sour-ish and when I took my hand out it tasted sweet-ish and sour-ish 

Conclusion:

I found out that I can taste better when I can breath through my noise and I also learnt that you should never eat these foods in a row since your stomach is going to hurt 

Discussion:

When I ate the baking soda I felt it near the back of my mouth.  

 

Skittle Colours Experiment

 Aim: 
I want to find out what happens when you mix Skittle colours. 

Method: 

Equipment

• Skittles
• Petri dish
• Warm water
• Beaker
• White background

Instructions: 

1. Get your equipment 
2. Place your petri dish on the white background
3. Put your skittle around the inside edge of the petri dish
4. Carefully pour the water into the middle of the petri dish
5. Observe what happen

Prediction: 

I think the colours of Skittles will come in the middle of the petri dish and will make a cool image. And if you mix it, I think it will turn brown. 

Results: 

When mixed: 

What I had witnessed was the colours of the skittles dissolving slowly when it felt the liquid.

When the colours touched each other they kept still, they did not mix. 

After I stirred the colours starting from the middle, it had turned into a light brown shade. 

Discussion: 

The colours dissolved (when a solid is mixed into a liquid, creating a solution). 

Why did the colours spread? 

Since the Skittles are colour sugar coated, when the warm water was poured onto the plate the colours are diffused (spreads out to a low concentration area - where there is no colour).