Science - Mr De Soysa

So far in science this year we have learnt a lot about the 4 layers of the earth (crust, mantle, inner core and outer core) and we also learnt about the different tectonic plates on the Earth. 

Inner core

The inner core of the Earth is the centre and the innermost layer of the earth. it is a solid ball with a radius of around 1220 kilometres. It is also the hottest out of the four layers.

Outer core

The outer core of the Earth is a liquid layer and is located around the outside of the inner core. The outer core is about 2400 kilometres thick and it's composed of mostly iron and nickel.

Mantle

The mantle lies between the crust and the outer core and is 2900 kilometres thick (the thickest out of the four). There is 2 parts to the mantle and that is called the asthenosphere. The bottom of the mantle is about 7000F deep and the top is about 1300F.

Crust

The crust is the thinnest layer of the earth and has 2 parts. One called the Oceanic crust and the other is the Continental crust. The crust is the outermost layer of the earth and is the layer which people live upon.

List of some of the plates of the earth:

African Plate

Antarctic Plate

Eurasian Plate

North American Plate 

Indo-Australian Plate

Pacific Plate

Made in Taiwan

Nathan and Oscar went on a trip to different Islands trying to track where their ancestors came from. First, they went to Mahia where they met up with Nathan's parents to open the envelope that has the results of where Nathan's ancestors came from. They found out that his father is a descendant of Maui, then thy found out that his mother's clan parents came from East Eurasia.
Next, they went to Rarotonga and visited the area of which Nathan's ancestors took off to New Zealand on the Takitimu waka. While in Rarotonga they visited a Cook Island family and talked to them about the similarities of Cook Island culture and the NZ Maori culture.
Then they went to Samoa. In Samoa, they went to stay with Oscar's family. Once they got there Oscar introduced Nathan to his family and showed him stuff around the house such as their own cemetery. The next day they went to church. After church they gathered together at Oscar's grandmother's house to open the envelope with the results of where Oscar's clan mother and clan father came from. They found out that his mother is from Eastern Asia and she is a descendant of Ina and his father comes from Southern Eurasia around the Himalayas.
Next, they visited Vanuatu where they met up with an archaeologist who taught them more about the Lapita Pottery. While looking at the pottery, they found that the pottery has the same patterns as the Tongan tapa and they also find that the patterns are similar to the ones on Oscar's tattoo. While in Vanuatu, Nathan got very sick and had to stay in bed for the day while Oscar went and visited a Vanuatuan family that taught him more about the Vanuatu Culture. The next day, they went with the archaeologist to visit an archaeology dig where they were shown bones and stuff like that.

Then, they went to Taiwan where they found that their languages are in fact similar which could lead to the fact that the polynesians did originate from Asia. Also, seeing as Oscar and Nathan are polynesians and their clan parents are from Asia or Eurasia could also lead to the fact that polynesians originated from Asia.

I do think their trip was successful because they found out and discovered a lot of things and evidence that adds to the fact that polynesians did in fact originate from Asia.