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Showing posts with label 7AL. Show all posts
Showing posts with label 7AL. Show all posts

Friday, December 7, 2018

The Uninhabited island



                       The Uninhabited island


In Uninhabited island is very quiet, but is a human Jack and a monkey Jim. This story from a llong time ago, there is a human and a monkey with there boat went to the Uninhabited island.
What they do in the Uninhabited island? They are going to see what happens in there and is
food, the temperature is cold or warm…… But they are not lucky, They went to the sea when
they went out to sea. So their ship was sent to the bottom of the sea by the waves. But they still
successfully boarded the island. Although they boarded the island but the man and monkey is
lost there don’t know where they are and they are work hard in the island .And they are use
hand write a very big “SOS” this mess help. Day by day they think we must build a house to live
they are thin aboutk where we can find building materials. The human thinks we can find wood,
grass and Leaves can build a house. first, the monkey on the tree gate the leaves and the human are gate the woods, but how do you cut the tree? The human think we can go bake
the sea bank see can we find we boat and use boat and leves make a smell house they
walked and walked at last they find they are the boat , they are very lucky to find their boat.
Now the sky is black and black because the sun is lower and lower that means is nearly
night time so they fast build the boat in to a small house and they just pass the one day.


On the second day they try to find food to eat, the monkey Jim see a tree have lots
bananas then Jim say aaa~ that means I find the food, jack listen Jim says so he go here see  
what happens and see lots bananas jack is very happy and Jim claim on the tree and take the
bananas pass jack , Jim take all the bananas out the tree and jack says:” we have lots of food
to eat now”. Are evening jack and Jim is eat bananas because they are so hungry, so they
eat lots of bananas.

10 bananas , so jack give 5 bananas to Jim , give 5 bananas to Jim, so now they don’t have
any food left so Jim and jack in the water find fish and crabs and use rock makes fire to hot the
fish and crabs, Jim is looking for the fish and crabs and jack use rock make fire and help Jim
look for the fish and crabs. They wait for 1 hour Jim find 2 fish and 1 crab, and Jack finds 4fish
and 2 crabs. Jack and Jim are having fun find the fish and crubs the fish and crabs is very yummy.


At the fourth day they see a boat they think the boat can save them but it is not they
just sailing away, Jim make an “SOS” on a big leave and the boatman see the “SOS” and on
there way to jack and Jim live ---- Uninhabited island, the boat is not likely under the sea they
are some sharks and the sharks come out and broken the boat and eat inside the people, now
jack and Jim knows they have sharks in the sea and the sharks is very big jack think we need
helicopter to save us, so jack cell Jim get some stick and make fire and the helicopter can see,
but is no helicopter here they think the boat have an engine so they can use the sailing boat engine
to make a helicopter, and the hardwork and  the day is finish.


                
At the fifth day, the wind is very big because there have a helicopter coming to
Jack and Jim is very happy jack fast find some stick and make fire and the helicopter see the
fire and save Jack and Jim.

 At the last day, Jack and Jim is a best friend!






               The End !

Friday, November 30, 2018

Purple Cabbage Experiment


              Purple Cabbage Experiment



Last Friday we were doing science learning about purple cabbage. First, we put three cups of water and purple cabbage into a blender, then poured the juice and into three cups. The first cup just cabbage juice, and second cup put some white vinegar in the cabbage juice and the colour turned red. Then we put some washing powder in the third cup and the colour turned green. That was exciting.

This means that vinegar is acidic, as the acidic things on the pH scale are red.
IMG_0058.JPG
Washing powder is alkaline, because these things are green.

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Friday, September 21, 2018

Alchemy

Alchemy


Today we did Alchemy experiment it was amazing, because the colour of the coin was changed.It's very cool I like it.



















Alchemy 21 September 2018


Aim:  

I want to find out how to turn a copper coin into gold.

Equipment:

  • Copper coin
  • Bunsen burner
  • Tripod
  • Heat mat
  • Gauze mat
  • 50ml beaker
  • Scissor tongs
  • Zinc metal
  • Zinc Nitrate solution

Method:


  1. Put your safety glasses on.
  2. Set up heating equipment.
  3. Add 50ml of Zinc Nitrate to the beaker.
  4. Add the strips of zinc metal into the solution.
  5. Heat the beaker with a blue flame.
  6. Once the solution is boiling, add the Copper coin on top of the Zinc.
  7. Wait for 10mins.
  8. Using scissor tongs, get the coin and wash it under water.
  9. Still holding the coin with the scissor tongs, hold the coin in the blue flame.

Friday, September 14, 2018

Ice experiment


Today we make Ice Cold. We have ice cube,salt,bowl and matches. First we have a bowl of cold water and put the ice in the cold water, and take matches put ice and matches together .If the ice and matches together is finish, if not together is not finish you must do again. Is fun I like it.

Ice Cold

You will need;

  • A bowl of cold water
  • A matchstick
  • An ice cube
  • Table salt

Instructions:

  1. Place the ice cube carefully in the bowl of cold water
  2. Gently place the match lengthwise on top of the ice and try to lift the ice cube
  3. Put the matchstick back on the ice and sprinkle a little salt along the line where it touches the ice cube
  4. Wait for 30 seconds and then attempt to pick up the ice cube again

What’s the science?

At first the ice cube and water are in equilibrium meaning that the rate of freezing and melting is the same.
The salt lowers the rate at which the water freezes, so the ice melts faster.
This releases lots of energy in the form of heat, so everything gets colder, including the ice cube. Where there’s no salt (under the match) the ice cube refreezes, freezing the match in place.

Extra for experts:

Why do we sprinkle salt on icy roads? So the ice melts faster.

Friday, September 7, 2018

Elephant's Toothpaste

This week Friday in science we learnt to make Elephant’s Toothpaste
Like that ( under here ). It was fun!  
 
Elephant’s Toothpaste          7.9.2018
Resources:
  • Safety glasses
  • A cylinder
  • Rubber gloves
  • A tote tray to protect the bench from damage
  • 120ml Hydrogen Peroxide 6%  
  • Dishwash liquid
  • Dry yeast
  • Food colouring
  • Funnel
  • Tablespoon
  • Beaker
Procedure:
  1. Put on your gloves and goggles.
  2. Put a tote tray on the bench and put your cylinder in the tote tray, with the funnel in the top.
  3. Ask the teacher to pour the hydrogen peroxide into your cylinder (via the funnel).
  4. Add 10 drops of food colouring to the cylinder (via the funnel).
  5. Add a tablespoon of dishwash liquid to the bottle (via the funnel).
  6. Swirl your cylinder around to mix everything together.
  7. In a beaker, mix a tablespoon of dry yeast with 3 tablespoons of warm water and stir for 30 seconds.
  8. Pour the yeast mixture into the cylinder (via the funnel).
  9. Stand back and watch the chemical reaction!
  10. Pour the mixture down the drain afterwards and wash out the cylinder.
Scientific Explanation (How it works):
The yeast and water mixture acts as a catalyst - something that speeds up a chemical reaction in another substance, while remaining unchanged itself. When you add this to the cylinder it makes the hydrogen peroxide break down into oxygen and water. The dishwashing liquid traps the oxygen in bubbles to create the foam. Just a small amount of hydrogen peroxide will create a lot of oxygen, so you get loads of bubbles - making your ‘toothpaste’ almost explode out of the cylinder.
Extra for experts:

  1. Is your cylinder warm after the experiment? Why?
  2. warm.
  3. Your experiment created a reaction called an Exothermic Reaction - that means it not only created foam, it created heat.