Sherbet

In science we made sherbet again. Here is what we did.

Equipment:

1. A small cup

2. An icecream stick

3. 1 teaspoon spoon Raro (Jelly crystals of any type)

4. 1 teaspoon of icing sugar

5. 1/4 teasoon of baking soda

6. 1/4 teaspoon of citric acid 

7. A teaspoon

Steps:

1. Add the Baking soda, sugar, citric acid, and raro crystals together in a cup.

2. Mix them together

3. Eat it

Taste.

In science we are doing another blind taste test. Here is all the stuff we did.

Experiment: Blind Taste testing

Equipment.

1. Samples 1-9

2. Blindfold glasses

3. Recording chart

4. Ice cream stick taster

Method.

1. Get saftey glasses and make a blindfold.

2. Set up your chart and make sure that the person you are working with knows where to record your responses.

3. Using an ice-cream stick you will dip it into the sample. Once the sample is on the stick you will taste it and tell you partner your response.

4. There will be 2 Answers

5. At taste test one you need to hold your nose.

Answer 1. Is it sweet, sour, salty, or bitter. Record it.

Answer 2. What do you think it is. Record it.

6. Repeat this for the next samples nut you will only need to use you iceream stick taster for samples 1-4.

Chilli Tasting.

Today in science we had to make a blog post about chillies. We had to find 3 different videos and 5 fun facts about chilli. So here are the videos and facts.

Videos.

1. Funny

2. Facts about chillies (Also has somethings about SHU)

5 Fun facts about chillies.

1. There are around 1 thousand different chillies in the world

2. Only mammals are sensitive to them.

3. Some parts of the pepper are hotter than the other.

4. Chilli peppers have a lot of vitamin c.

5. They are hot enough to "burn" through gloves.

Method:

1. Chilli sauce

2. Popsicle stick

3. Soda

4. Water

5. Milk

Instructions:

1. Get your equipment ready.

2. Get a drop of hot sauce on your popsicle stick.

3. Lick the Hot Chilli sauce.

4. Start the timer.

5. After 2mins, drink your drink.

6. After 5mins, how hot is your mouth?

7. Repeat the experiment but with a different drink.

Results

The first time, I had milk and after 5 minutes I scored it at a 1/10 for burning.

The second time, Ken had Coca-Cola and after 5 minutes he scored it at a 6/10 for burning.

The third time, Dylan did water and after 5 minutes he scored it at a 1/10 for burning.

Bacteria

 In science we are doing an experimant with bacteria.

Aim: To learn about bacteria and how they grow.

Equipment:

1. Agar dish

2. Cotton bud swab

3. Vivid pen

Method:

1. Collect the bacteria on a cotton bud swab from taps, computer keyborads or desks.

2. Divide the agar in half by drawing a line on the lid.

3. Wipe the swab onto the agar solution.

4. Put the petri dish into the incubator for 1 week to allow the bacteria to grow.

5. Draw and label a bacteria.

6. Draw and label a scientific diagram of the experiment. 

Hokey Pokey

For the last day of science we made some Hokey Pokey. Hokey pokey is a mixture of Sugar, Baking soda, and syrup.

Equipment/Ingredients:

1. 2 tablespoons of Golden Syrup

2. 4 tablespoons of sugar

3. I Heaped teaspoon of baking soda

4. A Pot

5. Tablespoon and teaspoon

6. Bunsen burner

7. Paper cups

Method:

1. Put 4 tablespoons of sugar and 2 tablespoons of golden syrup in a saucepan and melt.

2. Bring to the boil and simmer gently for 5 minutes.

3. Add baking soda and stir vigorously.

4. Put the hokey pokey on a piece of grease prove paper to cool.

Explanation:

1. Why do we stir it? To mix it and to stop the sugar from burning

2. Explain why the hokey pokey rises and has bubbles? It's because the reaction let's off gas which then gets stuck. It rises because of the baking soda reacting.

Neutralisation

 In science we are doing another pH test. This time we are using Universal indicator. Here is what we learnt.

Equipment,

Universal idicator

1M HCL (Hydrochloric acid)

1M NaOH (Sodium Hydroxide)

4 Test tubes

2 Boiling tubes

Test tube rack

2 Platsic pipettes

Steps,

1. Take a test tube rack with 1 boiling tube at each end of the rack and 4 test tubes.

2. Half or quarter fill the boiling tube at one end with Sodium Hydroxide.

3. Half or quarter fill the boiling tube at the other end with Hydrochloric acid.

4. Fill each test tube with 5 drops of Universal idicator.

5. Using the pipettes you will add drops of the acid or alkaline to the test tubes to make colours of Red, Orange, Yellow, Green, Blue, Violet.

6. DO NOT MIX UP THE PIPETTES.

Out of all the colours the only ones we didn't get was yellow.

Litmus experiment

 In science we are going to be using litmus paper to see if something is an acid or a base. Here is what we learnt and did.

Materials

1. Red Litmus paper

2. Blue Litmus paper

3. Sodium Hydroxide

4. Hydrochloric acid

5. Pipette

6. 4 Test tubes

Steps

1. Rip the litmus paper in half and put half in each test tube.

2. Add 3 drops of hydrochloric acid to the blue litmus paper in test tube 1.

3. Add 3 drops of hydrochloric acid to the red litmus paper in test tube 2.

4. Add 3 drops of Sodium Hydroxide to the blue litmus paper in test tube 3.

5. Add 3 drops of Sodium Hydroxide to the red litmus paper in test tube 4.

Conclusion and Findings

The blue litmus paper with hydrochloric acid went red.

The blue litmus paper with sodium hydroxide stayed the same.

The red litmus paper with hydrochloric acid stayed the same.

The red litmus paper with sodium hydroxide went blue.

In the end we didn't get told what the pH level was but we did get told if it was an acid or a base.

Acids

In science we learnt somethings about acids. Here is what we learnt.

What is an acid?  An acid is a liquid that has a pH of between 1-7. It tastes sour and is used in batteries and in our stomachs.

What are 3 examples of acids? Lemons that have citric acid, viniger what is acetic acid, and batteries sulphuric acid.

Red Cabbage Indicator ecperiment

Materials

1. Red Cabbage

2. Beaker

3. Bunsen Burner

4. Pipette

5. Sodium Hydroxide

6. Hydrochloric acid

7. Test Tubes

8. Paper Towel

9. Test tube rack

10. Water

11. Floor cleaner

12. Dishwashing powder

13. Fabric softener

Steps

1. Chop up the red cabbage into small pieces. Place in a beaker and cover with a small amout 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 the pipette.

5. Use the cabbage indicator and the pH chart below to test the acidity of the different three household liquids plus the hydrochloric acid and ammonium hydroxide.

Sherbet

 In science we are making some sherbet.

Baking Soda:

Baking Soda is also known as Sodium Bicarbonate. Due to its abravise and cleaning properties it is used as a raising agent in backing, as a household cleaner and in number of other ways. Here is 9 differnet ways you can use baking soda for cleaning.

1. Scrub away marks on the walls.

2. Underarm deodorant.

3. Clean and unclog smelly sinks.

4. Clean your tiles or grout.

5. Deoderise your kitty litter.

6. Cleaning your oven.

7. Wash build up out of your hair.

8. Deodrise your carpet.

9. Helps wash clothes.

Equipment/Ingredients:

Red cups

Teaspoon / Quater teaspoon

Icecream sticks

Raro

Icing sugar

Citric acid

Baking soda

Steps:

1. Add 1 teaspoon of powdered drink crystals (eg Raro) into the cup

2. Then add 1/4 teaspoon of citric acid

3. After add 1 teaspoon of icing sugar

4. Then add 1/4 teaspoon of baking soda

5. Last off mix them together

Questions:

1. Which two ingredients in the sherbet are involved in the reaction? Citric acid and Baking soda.

2. Which Ingredients are not involved? Icing sugar and Raro.

3. Can you think of any other chemical reaction that might happen in the kitchen? Becoming a rising agent?

4. Which ingredient is an acid? Citric acid which comes from things like lemons.

5. Which ingredient is a base? Baking soda.

Yeast

In science we are learning about yeast. Here are some things about yeast.

Yeast is a type of fungi that is microscopic. It is shaped like an egg. Yeast has also been used for hundreds of years. Yeast has to be woken up from a hybornation state. Yeast is all around us, and it isn't just in a packet. When you make bread the yeast eats the sugar that then preduces gases that then expands the bread.

Ginger beer. Aim: To look at how yeast is used in foods.

Equipment:

Spoons

Kettle

Bowl

Beaker

Cloth Sieve

Funnel

Plastic (PET) bottle and cap

Materials

Bug (For a group of 3)

50ml warm water

1/2 tsp active dried yeast

1/2 tsp sugar

1/2 tsp ground ginger

Ginger Beer (For 1 litre)

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 then pour into your clean bottle.

5. Label your bottle with your group names.

6. Place all the bottles in the class container.

7. Store in a cool, dark place for one week before drinking.

8. Make sure you open the bottle in the kitchen sink as it might overflow. Open the cap a bit by bit to allow the air to escape.

The ginger beer must be drunk over the 6 days.

Research about chilii and Chilli tasting.

In science we will be tasting chillies. Before we taste them we will be doing some research about them. Here is some things about chillies.

The thing that makes chillies hot is a chemical called capsaicin. Here are 3 different types of chillies.

Jalapeno

Chilli pepper

Bell pepper

The top 6 hottest peppers and where they are grown is: Carolina Reaper and it is grown in FORT MILL, S.C., Trinidad Moruga Scorpian and it is grown in Moruga, Trinidad and Tobago, 7 Pot Douglah and it is grown in Trinidad, 7 Pot Primo and it is grown in UL Lafayette, Trinidad Scorpian "Butch T" and it is grown in Texas, Arizona, Florida, and all hot areas, and last is the Naga Viper which is gorwn in England.

The scoville heat scale is something that shows the heat or spiciness of a pepper. Here is a picture.

 My hypothesis is that the milk would probably work the best out of the three.

The three things we will be using to stop the heat will be Milk, Water, and Coca Cola.

The Equipment we will be using is, Milk, Water, Coca Cola, Tasting cup, and chilli.

The results: Milk had a small effect but it worked mostly straight away and if it didn't it would take the tast away after 3 minutes, CocaCola also had a small effect where it would either weaken or take away the taste and after 3 minutes it would take the taste away, The water didn't do anything and it just made it worse and after 3 minutes it took the taste away slightly.

Milk could be a solution when eating spicy foods - litterally. Tha'ts because milk helps your mouth handle capsicin, an oily compound in chilli peppers. Capsacin binds to a receptor in the tongue and creates a burning sensation. Casein protein found in milk can also bind to the capsacin and wash it away.

Blind Taste-Test

In Science we are doing a blind taste-test. The aim is to taste foods that are bitter, sour or salty. There are foods listed from A to I. The equipment we used was, blindfold glasses so we could see what we were having, recording chart to record what we tasted, and ice cream sticks to have the stuff on. We did this in pears. One person leaded and gave the other person the items to eat. The other person tried to tell the other person on what they thought the taste was and they also tried to guess what it was. Here is the method and my chart.

1. Get a buddy

2. Choose who is gonna be blind folded

3. Help the blind folded person around and use a ice cream stick to give them the things they have to taste

(Make sure you record what they think it is and what the taste is.)

4. Do the same but change the person around

8 Facts about Mars. Hur 3

For the past few days we have been learning about Mars. /We have to make a Dlo showing 8 Facts about Mars. Mars is a really cool planet even if we are going to fly up to Mars in 2025 that's still a really long time to wait. But still I have 8 facts about Mars. Here's a hint of one of them. There's some amount of rovers on Mars. Don't search the answer because that will be cheating. Doing this was really fun and easy. I have a question for you guys, whats a your favourite thing about Mars.
8 Facts about Mars on Biteable.

The Martian. Hur 3

I the first week of school in Hur 3 our teachers let us watch the movie The Martian. The Martian is where there is a huge storm and they have to evacuate but one of them gets hit and gets left behind because they think hes dead. His name is Mark. He wakes up and finds a way to grow food because He doesn't have enough food to eat. Mark also finds a way to make water. It ends up blowing up in his face.

Mark goes into the pressure chamber to go inside but it explodes and he and the pressure chamber goes flying. All his potatoes die and he rages a bit. He covers the huge hole with a lot of duck tape and a big piece of plastic. Mark goes a head and counts all the potatoes he has left the last box he just couldn't count because the plastic was baggy and kept on going in and out and making a really annoying sound.

He was going to the Ares 4 landing site and make a shelter there but then he made contact with Earth because he found and rebuilt the satellite land finder. Then soon they were able to talk with their actual voice. He was in a small shuttle to get to the ship that the rest of the crew were in. They make a bomb and blow up one of the presser chambers to get to Mark faster but they were still to far away. So the commander goes out to try and get closer to him but she can't, so Mark goes Iron man mode and cuts his glove and the air goes flying and he closes his hand so he doesn't fly around and hurt himself, Mark aims and jumps out and blasts towards the commander.

Mark said some things about what he did on Mars to survive and once he finished and said, "Any question?" then everyone puts their hand up.He is safely taken back to the ship and they headed back to Earth. A few years later the next ship went to Mars.

My favorite part was were the presser chamber exploded. It links with our learning because they are making the Ares 1 to go o Mars and have a human to stand on Mars and do some tests. 

Change

  This week we made a google slide to show what we did for term 3. my favorite one was the bottle cup flying off.

Frizz, Pop, Froth

In science we are learning about change. It's when you combine two things together to get a reaction what makes a product.

Chemical Reactions

I am starting to learn about science and change. This is what I found out today. What new information can someone tell me?