Tuesday, 30 August 2016

Weather With Troy

Description: Our last science rotation was with Troy learning about the weather about like Tornados, lightning and stuff Me Jayden and Mike choose our experiment was to study volcanoes so we brought a 1.5 liter diet coke and Mentos mints. We dropped the Mentos into the coke to watch it erupt here's a video to show our learning we learned about how volcanoes erupted, formed, and how they affect the planet.


Volcanoes are formed when magma from within the Earth's upper mantle works its way to the surface. At the surface, it erupts to form lava flows and ash deposits. Over time as the volcano continues to erupt, it will get bigger and bigger.

Volcanoes erupt because of density and pressure. The lower density of the magma relative to the surrounding rocks causes it to rise (like air bubbles in syrup). It will rise to the surface or to a depth that is determined by the density of the magma and the weight of the rocks above it

Here is how volcanos work

Volcanoes are just a natural way that the Earth and other planets have of cooling off and releasing internal heat and pressure. 

As the magma rises, bubbles start to form from the gas dissolved in the magma. The gas bubbles exert tremendous pressure. This pressure helps to bring the magma to the surface and forces it in the air, sometimes to great heights.

It's sort of like the bubbles of gas in a bottle of soda. Before you open the soda you don't see many bubbles because the pressure in the bottle keeps the gas dissolved in the soda. When you open the bottle the pressure is released and the gas bubbles leave the soda. If you shake up the bottle first, the soda gets pushed out by the bubbles of gas as they rush out. 

Here is how volcanoes are affecting the planet: 

There are two things to think about. The first is how the weather near an erupting volcano is being affected. The second is how large eruptions will affect the weather/climate around the world. I think more people are worried about the second issue than the first.

The main effect on weather right near a volcano is that there is often a lot of rain, lightning, and thunder during an eruption.  This is because all the ash particles that are thrown up into the atmosphere are good at attracting/collecting water droplets. We don’t quite know exactly how the lightning is caused but it probably involves the particles moving through the air and separating positively and negatively charged particles.

Another problem in Hawai’i involves the formation of vog, or volcanic fog.  The ongoing eruption there is very quiet, with lava flowing through lava tubes and then into the ocean.  Up at the vent is an almost constant plume of volcanic fume that contains a lot of sulfur dioxide. This SO2 combines with water in the atmosphere to form sulfuric acid droplets that get carried in the trade winds around to the leeward side of the Big Island. The air quality there has been really poor since the eruption started in 1983 and they are getting pretty tired of it.

As for the world-wide affects of volcanic eruptions this only happens when there are large explosive eruptions that throw material into the stratosphere.  If it only gets into the troposphere it gets flushed out by rain.

The effects on the climate haven’t been completely figured out. It seems to depend on the size of the particles (again mostly droplets of sulfuric acid). If they are big then they let sunlight in but don’t let heat radiated from the Earth’s surface out, and the net result is a warmer Earth (the famous Greenhouse effect). If the particles are smaller than about 2 microns then they block some of the incoming energy from the Sun and the Earth cools off a little. That seems to have been the effect of the Pinatubo eruption where about a 1/2 degree of cooling was noticed around the world. Of course that doesn’t just mean that things are cooler, but there are all kinds of effects on the wind circulation and where storms occur.

An even more controversial connection involves whether or not volcanic activity on the East Pacific Rise (a mid-ocean spreading center) can cause warmer water at the surface of the East Pacific, and in that way generate an El Nino. Dr. Dan Walker here at the University of Hawai’i has noticed a strong correlation between seismic activity on the East Pacific Rise (which he presumes indicates an eruption) and El Nino cycles over the past ~25 years.

You might try this, but do it outside...

Tuesday, 23 August 2016

Book Buddies

Description: This term for our reading we are having something in our learning called book buddies, Book buddies is when you get together with your book buddy (Which is a person that is the same reading level as you) and sometimes you get with your buddy and you talk about the book that you are reading ( Which has to be the same book as you) You have to be at the same chapter as your book buddy. So you could talk about the same thing as your buddy. My buddy is Mike because he is the same reading level as me. Sometimes we have to meet with our coach which is Nic. Our coach helps us with our and tasks to complete about the book.

Well done Finis and Mike, I enjoyed watching and listening to your discussions about Weir-Do and Going Solo. You have worked really well as book buddies and I have enjoyed being your coach. If we continue Book buddies next term, keep striving to challenge yourself to "put yourself into the learning pit" by either choosing a challenging text or choosing challenging follow up tasks. Really stretch yourselves.

Evaluation: I think that this post is up to standard but I don't agree that the slide I think Me and Mike should Evidence more on our slide.

Tuesday, 16 August 2016


Description: Every year there is a event called Mathex, Mathex is a event where primary schools from around the Manawatu send at least 4 teams 2 year 5 teams and 2 year 6 teams to do math. Each team has 5 people. Well technically it's 4 but each team has a reserve in case somebody got sick on the day. On the day Carncot tied second with Hokowhitu and Winchestor came first. We came 20th on the day and the other team came 39th coming 20th is a achievement because there were 51 teams in the year 6 group. The year 5 teams got 21st and second which is pretty good. In Mathex it felt pretty stressful especially in the quick fire because the more questions you get right the more points your team gets Try and solve this Mathex question!
FeedBack: I like how you explained what you need to do. Edward
Feedforward: Maybe you can explain what it is like. Edward

Evaluation: Yeah I agree with Edward to explain what it's like so I added it to my description.

Monday, 15 August 2016


 Description: This terms goal for the school is Panekiretanga which means excellence in Maori we had to make a slide talking about how to show excellence, examples of excellence, and to make goals to help us improve on showing excellence.

Feedback: Nice description. Billy
FeedFoward: I think you need to make your description bigger. Billy

Evaluation: I don't know what's wrong with this post.