This math class was so boring. We were learning about fractions and I almost fell asleep. I tried to keep my eyes on the chalk board, then it suddenly went back, in fact everything went black. Then an announcement came on saying that there was a problem with the lights and everyone needed to be evacuated to the oval. Then we did a quick role call and the teacher said 8/8 of us were here, that is one whole in case you don’t know. Oh-no I paid attention in the fractions lesson, NOOOOOOOOOOOO, MY LIFE IS OVER!!!
Summary: This video was about the destruction mount Ruapehu can cause when it erupts.
. Lahar flows can flow to the speed of 100k.
. Storms and other natural disasters can cause volcanic eruptions.
. In 1953 mount Ruapehu erupted and killed 150 people.
. What was mount Ruapehu’s biggest eruption?
. What was mount Ruapehu’s biggest lahar flow?
. Mount Ruapehu is one of the most dangerous volcanos in the southern hemisphere.
Science class last week was the funniest class ever. We all went on an excursion to a shore with tonnes of seals. We weren’t very sure what we were doing there at first but the teacher explained why. We were there to test his new invention. The Transforminator, and he was going to transform a rock into a seal. He took a fur sample from one of the seals and put into the machine. He was about to shoot the rock, but he tripped just as he fired ,and the ray hit me. It was hilarious, everyone laughed, including me!
My sister was annoying terribly. I ran in to the kitchen and my mouth watered a delicious smell met my nostrils. I knew it immediately, mum was making an apple pie! “Kym can you get some more apples from the back pleas”? Asked my mum “Sure” I said and Bolted to the store room. But when I got there I didn’t find apples but a scarlet violin, I stepped with caution towards it and played. Suddenly a portal opened in front of me and a voice said “finish the journey and you will find the apples”.
“You’re on” I shouted and jumped through the portal.
I fell to the ground with a thud! I looked to see the bullies that had punched me down. Next 2 of them got to my feet and the other bashed me again. It was starting to get really hurt. Just when one of the bullies raised his fist I saw the thing that was getting me bashed, a girl the bullies liked and she liked me and she was smiling at me and is like powerful flash. At first I thought nothing would change But the flash made me strong and I took the bullies down. After that I walked to the girl took her hand and walked away.
One day I was walking down the street when all of a sudden I heard a scream from an alley. I followed the sound and found a woman surrounded by armed men. “Hey, get away from her”! I shouted running towards them. One of the men pointed his gun at me but I kept running. He fired but I jumped, ran along the wall and smashed him. The other men charged but I knocked them all down too and managed to grab a gun and everyone ran. A week later I became famous, it turned out that woman was a reporter and she wrote an article all about my heroism.
Our project was the Australian mulga. For our experiment we used the mulgas adaption of super long roots, so long in fact that they can soak up water from wet soil deep underground. Are prediction was that the very long strip would soak up more water and end up heavier. We used two cups full of wet dirt and put one strip of sponge in each, one short strip from a different kind of tree roots and one long strip for the long mulga roots. We put the sponges in and let them soak for 1 hour, we weighted them before and after. At the start the short one weighted 0.9 tenths and at the end it weighted 1.8 tenths. And for the long one it weighted 1.3 tenths at the start and 3.3 tenths at the finish.
In conclusion our prediction was correct: The longer strip would soak up the water and will end up heavier. We did something’s well doing this experiment some were not that good. For example we knew exactly what to do and how we are going to do it. One of the bad things were that the original plan had some faults and had to be changed.
Today we are going to talk to you about the great tree itself, the Australian Mulga! It is an incredible plant. It is beautiful and has helped Australians from the beginning thanks to its healing capability’s. Not only all that but it has the most mind blowing adaptations. Enjoy the presentation!
What is a Mulga?
Mulgas are native plants and are part of the Acacia family. They grow around one meter per year and they can grow up to 10 meters tall, 25cm wide and can age over 240 years old. Not only that but the sap that spits out of them after a sap sucking insect gets on them is actually very sweet, this was discovered by the Aboriginals and the early settlers who called it bush lolly.
Where do Mulgas grow?
They grow in 20% of the continent, in South Australia, New South Wales, Queensland, Western Australia and the Northern territory. They can usually be found in hot and dry places like deserts, such as the Australian Outback and the Great Sandy Desert. They usually grow of soils like red sands, red harpan soil, red earths, red duplex soils and calcareous soils, and they have adapted really well to their environment and its arid conditions.
The Australian Mulga has some very amazing adaptations that help it survive in the hot, dry and arid conditions where it grows. It has many adaptations such as:
. The roots can go so deep it sucks up the water from deep wet soil.
. An arrangement of their phyllodes and branches gets water channelled to the roots and stem.
. Their leaves grow upward to funnel water to the roots.
. Acacias like the mulga have bacteria associated with its roots that converts atmospheric nitrogen to forms that can be used by the mulga.
. Since mulga phyllodes have a smaller surface area they reduce the amount of water lost to the atmosphere.
. Phyllodes also lower surface area to volume ratio that reduces the amount of heat compared to the standard flat leaves.
. The shortness of their phyllodes make water gathering more efficient.
. Their crown shape maximises the channelling of water.
. They gather water in a spot in the soil around their stems and it’s so deep that the water can’t evaporate.
How do mulgas help people?
Mulgas have been very super helpful to mankind from the aboriginals to today. Different parts of the tree have been used for many different things. One of these things was making tools, the wood from the tree is a very good substance for tool making. They make lots of things from mulga wood tools, hammers, spears and even some tent supporters. They also provide them with shade shelter and food, in fact the mulga was one of the aboriginals’ main plant food sources. Also the mulga has healing capabilities, the aboriginals used lots of different parts of the tree to heal different things, for example: Boiled mulga twigs can be used to cure colds and flues when rubbed on, headaches can be cured by smocking Phyllodes and twigs until they are soft and scorching and then placed of the aching area.
What are its behaviours?
Like most plants they don’t have as many behaviours as animals but they do have some behaviours. One of which is absolutely unbelievable. Everyone knows that all living things needs water to grow, so when there is very little water in its desert environment, it stops growing! The tree can stop growing and it just stays the same, that way they don’t use much water to help it grow and it can use it for other things, and when the rain starts again it can start growing again because it does not need to store water so much.
So over all the Australian mulga is a truly incredible tree, complete with unmeasurable beauty, mind blowing behaviours astounding adaptations and are very helpful to mankind. Thanks for reading about the great AUSTRALIAN MULGA TREE!!!
Native: Living in the environment when someone was born or something’s was made
Aboriginals: The first Australians before white people came.
Maximises: makes bigger
Arid: Dry, hot and harsh
Phyllodes: Leaf stems that have thickened to do the job of leaves
Channelled: Guided to somewhere.
Bacteria: Small organisms that help the thing they are in stay healthy.
Atmospheric nitrogen: An element that radiates out of the atmosphere and can help living things.
Behaviours: Things that the plant, human or animal does.
Evaporate: What water does when it gets hot: turn into a gas and floats up into the atmosphere.
Phyllodes: 2, 3
Atmospheric nitrogen: 2
In term 2 we were assigned to do a project based on a plant or animal that lives in hot dry and arid conditions. The one I was researching was the Australian mulga tree. I was working with Josh Kruger and I thought we did a really good job with the jobs we assigned to each other and how the presentation was at the end. I did research on the mulgas adaptations, made the scientific diagram and wrote the presentation. Josh did research on the mulgas environment, made the model and worked out an experiment based on one of the mulgas adaptions.
3 things I found interesting:
. One things I found interesting was that Australian mulgas actually grow in 20% on the Australian continent: Western Australia, Northern Australia, Southern Australia, Queensland and New South Wales.
. Another thing I found interesting was that different parts of the mulga can actually be used to cure different kinds of sicknesses like colds, flues, headaches and many more.
. Another thing I found interesting was that mulgas stop themselves from ageing when there is very little water so they can use less water for the most water using thing in its survival: growing.
. I understand without its super long roots that can go over 20 meters into the ground to soak up water from the deep, water gathering can be a lot more challenging.
. Another understanding I have is that if it didn’t have its healing capabilities, the aboriginals and anyone else who used it wouldn’t have survived.
. How does the mulgas crown shape maximise the channelling of water.
What was the most important thing I had to learn:
The most important thing we had to learn during this term making the project probably how it survived in the environment it’s in. I choose this because I was very curious about it and I thought that I should really find out.
How did I learn this:
I learnt about how the mulga tree can survive in its super-hot environment by asking the teacher for some websites with facts about mulgas on it so I could look at them and take notes. I also got my partner to do some work to then I asked him for the notes he took to put them in the presentation.
What am I going to do with what I have learnt:
I am going to use the mulgas adaptations for some Ideas to help the world. I am going to this because I want to be the world’s greatest inventor in the world.
Goals for this assignment and how I went achieving it:
One of my goals I wanted to achieve in this assignment was that I can explain the structural features of and behaviours of the Australian mulga fluently. I think I did a really good job with achieving this goal and I’m insanely proud of myself.
In conclusion I think we did a really good job with this project and I think my partner is to. I have told you about what I found interesting during this project, what I understood, what I wondered about, what was the most important thing I learnt and how I learnt it, what I am going to do with what I learnt and my goals for the project. I hope you enjoyed this and I hope you learnt something. Thanks for reading:
I was never the world’s biggest fan of footy, but after this experience it has changed that completely. This experience of which I speech of is when 4 Essendon AFL players came to the school and taught everyone on the footy team some skills on how to play footy. After we all did some kicking and hand balling practise we all played a game, the 4 AFL players VS the school footy team. It was a really breath taking event, we managed to dodge through the big players and scored a few goals and points. But I’m sorry to say that the tide turned when the older players said “last point wins!” And I’m afraid the AFL players scored the last goal. But even after that I got all their autographs on my lunchbox and I was never so exhilarated in my entire life.