Tuesday, March 23, 2010

EARTH HOUR and Fish & Co


Hi Gentlemen,

I thought I would do a bit of promotion for Fish & Co and their good cause.

If you still do not know, Earth Hour 2010 is going to happen this Saturday. Earth Hour was a movement started in Australia in 2007, where homes and business pledged to switch off their lights for 1 hour and and has ever since swept the whole world. The whole idea is about making a change in our habits to at least help Earth in whatever way we can.

No doubt, sometimes asking ourselves to be really clean and green can sometimes be difficult but something has to start somewhere, somehow. I think supporting Earth Hour is a good start. Imagine the whole world without lights for that 1 hour, on how much we can save on that amount of energy used to actually produce that light.

Below is the poster by Fish and Co.....



......and you can catch their catchy video to do our part for Earth here also.

Spread the word and get a $1 voucher where u can purchase their famed fish and chips for just $1!=)

If you want to know more about Earth Hour, go to their official website HERE!

Oh, want to your part to save a bit of energy? When you are googling for anything , use this search engine Blackle instead. Blackle is mainly google search engine just that instead of colour and white screen (it uses more electricity as compared to a black screen) it uses mainly a black screen and greys.

Be green spread the message!=)

Cheers,
Miss Zheng

Saturday, March 13, 2010

Chapter 8: Animation of Plate Tectonics

Dear Gentlemen,

Click the link below and explore the website for different animations of the different processes taught in class already so as to better understand and visualize what is taught already. =)


Cheers,
Miss Zheng

Chapter 8: Vulcanicity and the landforms

Dear Gentlemen,

Below are the videos I went through with you (Class 1-9), Class 1-5, you can look through it as you read the textbook and do your notes.

How Volcanoes are formed (Vulcanicity)

The video above talks about how volcanoes form and this process of Vulcanicity is a very important geographical concept that you must know for Chapter 8. The video also talks about the Pacific Ring of Fire which is found in the Pacific Ocean area, please note that you must know how to highlight where the Pacific Ring of Fire is.

The next video below is about the different types of volcanoes that can be found, this is added knowledge that is not talked about in your textbook. The analogy I gave in Class 1-9 is honey and milk. Honey and milk are both liquids, but Honey is much thicker than milk. I gave the example in class that if I was to pour out honey and milk on the tables, which will flow faster, if you have eaten both liquids, your answer should be milk will faster. As such, since milk can flow faster, this would also mean that milk can go over a larger surface area on the table as compared to milk.

You all know that when magma reaches the Earth's surface, it becomes lava and it cools down when on the Earth's surface and hardens. So if milk can reach over a larger surface on the table, this would also mean that the surface area for it to be in contact with cooler air would be larger, so it will cool down much faster as compared to honey.

Different volcanoes are made up of different materials and magma that comes up to the earth's surface, some lava may be very thick or some very thin, so eventually it will form different kind of volcanoes. Read the notes on the Volcanoes, below there are the different types of volcanoes introduced, you will not be tested but it is for you general knowledge.


Remember for all that I have gone through, you must know the
1) the difference between magma and lava
2) where the most volcanic activity occurs (plate boundaries)
3) how does an eruption occur
4) different crustal plates, how to identify and label them.
5) The different internal processes that happen (PULL, PUSH, SLIDE)
6) The resultant landforms due to the internal processes
7) To draw and label a basic cross section of a volcano
8) How volcanoes are formed (To be able to describe)
9) The location of the Pacific Ring of Fire

Don't leave it to last minute to finish your work, do it NOW, and so that you can enjoy at the later parts of your holidays.

Cheers,
Miss Zheng

Thursday, March 11, 2010

Chapter 8: Internal Structure and forces that create landforms

Dear Gentlemen,

Below are the videos I showed in class today to better let you visualize and know what are geographical concepts and ideas of this chapter. Do look through the videos again as revision and get a better understanding of the many new geographical concepts introduced.

Video on the Internal Structure of the Earth

Video on the Early Earth (The idea of supercontinent Pangaea, Laurasia and Gondwandaland)

Video on the concept of Plate Tectonics Theory, Continental Drift, plate boundaries(constructive & destructive) and the different internal forces (Push, Pull and Slide)

How convection currents work in the Continental Drift Theory (To cause plates to push, pull and slide with each other)

Eruption of Kilauea Volcano (In Hawaii, which is mentioned in the "How volcanoes form" video above, where hotspots were introduced and that volcanoes at hotspots form due to the loose rocks rising up from the core to the crust)

Remember to label the different plates on your notes and also know where fold mountains can be found on the world map!



Wednesday, March 10, 2010

Chapter 8: Will Krakatoa rock the world again?

Dear Gentlemen,

Especially for Class 1-5, I told you all about Krakatoa found in Indonesia and how it's explosiveness could be heard as far as Perth in Australia, also added that the amount of TNT/power that Krakatoa 13,000 times the power of the bomb that was dropped on Hiroshima! This eruption caused change in weather where average global temperatures following the eruption fell by as much as 1.2 C, as the huge quantities of sulphur dioxide pumped into the atmosphere resulted in clouds that reflected a greater amount of incoming light from the sun. Also of course, destruction to not only humans but also the physical environment.

Just last year, there were speculation of Krakatoa stirring and threatening to erupt again. See excerpts of the online UK daily news and the pictures of Krakatoa taken from there.

Ominous glow: In 1883, more than 36,0000 people died when Krakatoa erupted - today, thousands more farmers live near the volcano
Risk: The smoking time-bomb is located on the Sunda Strait, between Java and Sumatra

Ticking timebomb: Islanders thought they had avoided another disaster after things went quiet in 2008

Firestorm: In an awesome display of flaming lava and molten ash, Anak Krakatoa - the child of Krakatoa - reveals its latent power. In recent years, eruptions have steadily grown in intensity
Devil’s cauldron: Krakatoa’s eruptions draw in violent thunderstorms, adding to the air of menace

All photos from website,CLICK HERE FOR FULL ARTICLE


Saturday, March 6, 2010

Data of sea level rise in pictorial form


Taken from here


Chapter 6:Photographs and the environment

Dear Gentlemen,

Just as we wrapped up Chapter 6 on photographs and how to interpret it, do visit the NASA website link (in case you do not know what NASA is, it's called National Aeronautics and Space Administration and it's set up in the U.S.A) here

Below are just some photos take from the website, it's really mainly photos about space and the Earth, which reminds us on ow we should protect Earth and appreciate the beauty it has to offer to us ...=)







Enjoy the weekend!

Cheers,
Miss Zheng

Wednesday, March 3, 2010

Chilean Earthquake Shifting the Earth Axis!!?



The diving tectonic plate at the epicenter of the magnitude 8.8 Chile earthquake Saturday helped to temporarily redistribute mass on Earth.

Dear Gentlemen,

Recently, the a 8.8 magnitude earthquake struck Chile and now scientists are saying that it has caused the axis(remember it's imaginary) to shift,causing the spin to be not as fast as before, resulting in shorter days...

Look at the video below to understand...


NASA explained that the key to the shift was due to the location of the Earthquake, with the fault slicing through Earth at a steeper angle, making "Chile fault more effective in moving earth's mass vertically and hence more effective in shifting Earth's figure axis.

You can click on NASA website to read and find out more.

Though devastating, it is really interesting on how what we were studied before and what we are studying now and in the future are really things happening around us NOW.

So remember that our actions and interactions with the environment is very important. =)

How a Handphone is recycled

Hi Gentlemen,

As what I posted in the previous two posts, I mention about the initiative the school is having in terms of recycling old handphones or accessories, do take time to see how our handphones can be actually recycled into different plastics, ceramics and metals that can be re-used for the production of other handphones or even other products (like gold used in your mum's jewellery =P )

So visit Nokia's website and learn more about it.

Cheers,
Miss Zheng

Tuesday, March 2, 2010

Sports and Geography =)








photos credit to : Notcot
Hi Gentlemen,

Just as we are studying about our environment and how we should care for our environment, also how there are interrelationships between humans and the environment, I just came across a smart advertising from the Nike, doing the Soccer Kit for the upcoming World Cup.

What caught my attention was Nike's attempt to be environmentally friendly in using recycled plastic bottles to come up with the Shirt in the kits they are selling. Awesome idea! See the pictures below! Quite an amazing advertising piece too =)
So in line with my previous post about recycling, do your part and remember to RECYLE your old handphones and accessories which cannot be used anymore!







RECYCLE YOUR OLD HANDPHONES IN CHS!

Dear Gentlemen

Do u have old rusty hps lying around your house? Well, here's something you can do to your "beyond revived" hp and the environment as well!

Your old mobile phones and other accessories can be broken down into recycled parts, and be used to make other objects.

A team from SAJC has collaborated with NOKIA to collect all spoilt hps and accessories from as many consumers as they can.

You can drop spoilt/rotten/beyond repaired hps and accessories in the huge green box with a Nokia Logo in the Secondary School General Office. The deadline is Friday, 1pm.

You can also pass it to me if you want! Spread the message to your family members and ask if they want to discard their unwanted handphones!

Do your bit, and save GAIA!!!!