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 

The Erebus Plane Crash

Predictions-

What do I think I know about this disaster?

I only know that there’s a plane crash and that it happened on November 1979

What do I think I will find out about this disaster?

I think I’m going to find out about the time and date of this, what happened and he death toll

Reading Comprehension-

1. Where was flight 901 heading, and where was it planning to land? 

Flight 901 was heading to Antartica and had planned to land in Christchurch 

2. What were the names of the pilot and co-pilot of flight 901?

Jim Collins and Greg Cassin were their names 

3. Why did the pilot ask to descend to 450 metres?

It was so the passengers could have a better view of their surroundings 

4. What reasons are given in the passage for why the crash occurred?

It was because they were seeing McMurdo Sound when they were actually seeing the lower slopes of Mt Erebus and they had lost communication at that time

5. What time did the crash occur?

At 12:49 pm

My Notes-

Video #1

• Sightseeing flight
• One of the worst disaster to ever occur in aviation
•  Monumental 
• Below freezing 
• No mention of plane flying over Mt Erebus  

Video #2

• Air NZ going sightseeing
• Antarctica's largest volcano 
• Gave passengers maximum view 
• 12450 ft Mt Erebus
• Plane could of climbed out of it  

Poster-

Reflection-

What am I learning?

I am learning about the Erebus Plane Crash

How does this work show my learning?

The answered questions, the notes and the poster should show my learning 

What am I wondering as a result of this learning?

Nothing really

Looking back at my predictions, what did I get right, what was different and why?

I got everything answered 

The Pike River Mine Explosion

 Predictions-

What do I think I know about this disaster?

All I think I know about this disaster is that it happened in a mine, a few people were killed, it was an explosion and it happened in 2010 

What do I think I will find out about this disaster?

I think I will find out the death toll, what caused the explosion and what happened to the place after

Reading Comprehension-

1. Where is the Pike River mine?

Where coal was first discovered  

2. When did mining at the Pike River mine begin? 

In November, 2008

3. How many men were inside the mine when the explosion occurred?

31 men were inside at that moment 

4. How many men escaped?

Only two of them survived 

5. Why were robots sent into the mine?

Because it was too dangerous for humans to go in

6. What decision did Jacinda Adern make and announce in 2019?

She promised to unseal and re-enter the mine

My Notes-

Video 1

https://www.newshub.co.nz/home/new-zealand/2019/05/pike-river-timeline-from-the-first-explosion-to-the-re-entry.html

• Killed 29 men
• Still burnt
• Full safety measures
• The portal
• 30m mark

Video 2 

• Safety issues 
• These times mines don't blow up
• Preventable 
• Signs bad ventilation 
• Gas issues

Poster-

Reflection-

• What am I learning?

I am learning about the Pike River mine explosion disaster

• How does this work show my learning?

This post shows my learning since it has written information 

• What am I wondering as a result of this learning?

I am wondering who discovered the first coal at the mine

• Looking back at my predictions, what did I get right, what was different and why?

When I looked back at my predictions, all I wrote down was answered

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