Acids

 What makes something acid? An acid is a substance that donates hydrogen ions. Because of this, when an acid is dissolved in water

Properties of acids? Aqueous solutions of acids are electrolytes, meaning that they conduct electrical current

What is an acid? A substance with particular chemical properties including turning litmus red, neutralizing alkali, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind.

what are 3 examples of acids? 

• Hydrochloric Acid.
• Sulfuric Acid.
• Nitric Acid.

what is the most famous indicator? Moving Averages.

what does pH stand for? Power of hydrogen

How many numbers are there on pH scale? 1-14

Aim: To make red cabbage pH indicator for use on different household chemicals

Materials

1. Red Cabbage

2. Beaker

3. Bunsen Burner

4. Pipette

5. Sodium Hydroxide

6. Hydrochloride acid

7. Test Tubes

8. Paper towel

9. Test tube rack

10. Water

11. floor cleaner

12. dish washing liquid

13. vinegar

Steps

1. Chop up the red cabbage into small pieces. Place in a beaker and cover with a small amount of water.

2. Bring the solution to the boil using a Bunsen burner and then turn off the heat. Let it sit to cool down.

3. Pour the cabbage water through a paper towel into a beaker. The dark purple liquid in the jar is the pH indicator liquid.

4. Suck up the indicator into a pipette.

5. Use the cabbage indicator to test the acidity of the different household liquids by slowly putting a drop at a time into the test tube.

Sherbet

 Sherbet

10. Scrub away scuff marks on the wall.

 9.  Use it as an underarm deodorant. 

 8.  Clean and unclog smelly sinks.

 7.  Clean your grout.

 6.  Add abrasive to to cleaning products.

 5. deodorize you kitty litter tray.

 4. clean your oven.

 3.  wash build up out of your hair.

 2.  Deodorize your carpet.

 1.  laundry booster

Sherbet had 2 ingredients are yum and 2 are there to make it react.

 Equipment:

1. citric acid

2. baking soda

3. Raro

4. icing sugar

5. ice cream stick

6. spoon

7. cup

Steps

1. Add raro

2. Add citric acid

3. Add icing sugar

4. Add baking soda

5. mix it and eat it

Recipe:

1 teaspoon of powdered drink crystals (eg Raro)

1/4 teaspoon of citric acid

1 teaspoon of Icing Sugar

1/4 teaspoon Baking Soda.

Findings

1. Which two ingredients in the sherbet are involved in the chemical reaction? baking soda and citric acid

2. Which ingredients are not involved? Raro and icing sugar

3. Can you think of any other chemical reactions that might happen in the kitchen? Burning toast

4. Which ingredient is an acid? Citric Acid

5. Which ingredient is a base? Baking soda

Maths

Kia ora everyone,

Today for maths we had to answer a multiplication table and we had to roll a dice and whatever number it lands on, you have to save that number and roll again and when you roll twice you add the numbers that you got, Here is my table that wrote in my math book...

That's all for today,BYE!!!

The 'Rena' Disaster

 Hey everyone,

Today for Hurumanu 3 we had to learn about the 'Rena' disaster. We also had to answer the questions by researching on the internet. Here is what I have researched...

That's all for today, Hope you guys have a nice lock down. BYE!!

Gold,silver and bronze medals

 Hey everyone,

Today we have been learning about different athletes and what they have won. Here is what I have written....

That's all for today, BYE!!!

Yeast

Yeast  

  

What is Yeast? Yeast is fungy like found in the air around us. It's been around for a long time/years. It is ma made- In a bottle. There's 1000 kinds of yeast.

What is fermentation?

the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat

What affect does sugar have on yeast?

Too little sugar in dough can slow down yeast activity: Yeast is a lot like us – it loves to eat sugar. Yeast needs sugar to produce carbon dioxide – the leavening gas that causes the dough to rise.

What are 3 foods that have yeast?

 Breads, muffins, croissants, and other baked goods usually contain yeast. 

Equipment: 

1. Spoons
2. Kettle
3. Bowl
4. Beaker
5. Cloth sieve
6. Funnel
7. Plastic (PET) Bottle and cap

Materials:

• 500ml warm water
• 1/2 tsp active dried yeast
• 1/2 tsp sugar

Ginger beer

• 3/4 cup sugar 
• 1/2 tsp cream of tartar
• 1L cold water
• Juice of 1/2 lemon
• 1 tsp Ginger beer bug.

Method: 

1. In a large bowl, put the sugar and cream of tartar, then add the warm water.
2. Stir to dissolve the sugar before adding the cold water.
3. Add the ginger beer bug to the large bowl of cold water.
4. Stir well and the pour into your clean bottle.
5. Label you bottle with your group names.
6. Place all the bottles in the class container.
7. Store in a cool,dark place for 1 week before drinking.
8. Make sure you open the bottle in the kitchen sink as it might over flow. Open the cap bit by bit to allow the air to escape.

Today We made Ginger beer in class. We did this by activating the yeast first by adding sugar to the yeast, putting this, We it to the side and left it to ferment while we made the rest of the ginger beer. We made the ginger beer in an ice-cream container by adding first the sugar then the water,some lemon juice and lastly the ginger beer bug. Once  everything was mixed up we put it in a bottle. It is going to take about 6 days to turn into ginger beer. Mr Palmer is going to keep in his office for the next week.

New Zealand Athletes

 Hey everyone,

Today we have been learning about New Zealand athletes that competed in the Olympics. Here is a slide show of what I learned about the athletes...

 

 That's all for today,BYE!!!