Brit



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= BRIT'S DISASTERS PAGE = = = media type="custom" key="5908637" width="220" height="220" align="center"

=media type="custom" key="6002321" width="448" height="448" = =ARE WE MORE DANGEROUS TO THE WORLD THAN NATURAL DISASTERS? =

=**Week One** = = = =**Reflection:** = =I have learned how to set up a wiki space, how to use it and how to have a discussion on a wiki page. I have also learned how the seasons work and how the earth is tilted. I found out that the world can do a full turn 24 hours and it can go round the sun in 1 whole year. Also, if we didn't have a moon things will go crazy. For example, Antarctica will turn into a desert and the Tropical Rain-forest would find itself frozen under a bed of ice.= =**Questions? **= =How is lava formed?= = Below is a video with some information about tsunamis such as: how they are formed and how they get their biggest. media type="youtube" key="j9JDzBTwiig" height="385" width="480" = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = To see a demonstration on how a tsunami is formed click on the following link [|demo on tsunami formation] = = = = = = = = = = =**For those who want to look at a fake world ending including a tsunami please follow the following link. [|End of world]**=

= = =Week Two = =I think earth quakes are the most dangerous because tsunamis are formed by earth quakes that are created under the sea in the deep part of the ocean. What happens is that the part of the sea's floor splits open and lots of water rushes into the open crack. When the crack closes a huge force of water is pushed up to the surface and forms a rise in water level and at that moment a huge wave is formed. This is called a tsunami. When an earth quake is formed on land it develops a crack in the surface of the earth. From that crack and the disturbance to the land, buildings and other structures may collapse onto each other, the ground or even people. Also, it is almost impossible to see a earth quake coming, so it is very difficult to prepare for and move out of it's path. That is why I think earth quakes are the most dangerous natural disaster.=

== = = If you want to see where the latest earthquake is click on this link [|latest earthquake]

=Types of Natural Disasters: =

=Watch the digital story below to see different types of natural disasters.=

media type="file" key="Natural disaster Photo story_18.wmv" width="300" height="300" align="center" =What is a disaster? Something that causes a lot of damage that can hurt,or destroy things.=

= Reflection: = =Reflection: this week I made a chart with Bridey about Tsunamis and it included what it looks like, sounds like,feels like, wonders and the effects of it. I discovered I know a bit about them and I did some work on my wiki space.=

=Week Three: = = = =Reflection: = =This week I worked on my wiki spaces and I also looked up some information on the worst natural disaster it was a lot of fun and I learned a bit of information.=

=The worst natural disaster: = =I think earthquakes because they make tsunamis by earthquakes under the sea in December 2004 there was a earth quake that shook so hard it made a series of killer waves. It killed over 225,000 people and reached a scale of 9.0. The deadliest earthquake was at 3:42 a.m on July 28th,1976. The earthquake reached a 7.8 on the scales when it hit the city of Tangshan in Northeastern China. The quake killed over 240,000 people making it the one of the deadliest earthquake ever.=

=Week Four : = = = =Reflection: = = This week I learnt about how earthquakes and tsunamis are measured. The mercalli scale is measured on damage. The richter scale is measured on the strength of the incident and i also learnt that the center of the earth is hotter than the surface of the sun. i also learnt that there is tectonic plates under the earth holding the lava in but when the teconic plates hit each other it makes an earthquake, and lava comes through the cracks and to the volcano so it may erupt. when the volcano is in-active it is called old and ancinent.= = =

= What do we use to classify disasters? = =The bigger it is on the scales the higher the risk.= = How are they measured? =
 * = Tsunami - the higher the sea level the greater the risk.=
 * = Earthquake - the higher the reading on the Richter Scale the more risk to people. The higher the reading on the Mecalli Scale, the more damage that has been done.=
 * = Floods - the higher the depth of water and the speed of water flow the greater the risk=
 * = Bush fires - classified by the type of vegetation burning, sometime this is also called fuel=
 * = Volcanoes - The volcanoes that erupt a lot are classified as Active also if they erupt less than the active ones they are classified as Intermittent, and if they are inactive they are classified as Dormant. If they are inactive and probably will not erupt again they are classified as Extinct.=
 * = Tornado - You use a **Fujita scale** (**F-Scale**) to rate tornadoes. This way looks at how much damage the tornado does on human built structures and trees.=
 * = Avalanche - **People use a radar to classify a avalanche. Radars are use do look at the movement of the snow and how fast it is flowing.**=
 * =** Tsunami- ** They use **satellites** to measure changes in the height of the sea level. They also measure the **tides** that come onto the beach for any unusual changes.=
 * =** Earthquake- ** To measure an earthquake they use the Richter scale for the strength of the incident and they use the Mecalli scale for the damage.=
 * =** Floods- ** You would measure it by the depth and the water flow speed.=
 * =** Bush fires- ** These are mainly measured by how fast it is spreading in kilometer per hour. The intensity of the fire is the among of energy released from the trees and vegetation when it is burning.=
 * =** Volcano- ** Scientist use GPS mapping to measure how fast the lava is flowing.=
 * = Tornado - You use a **Fujita scale** (**F-Scale**) to rate tornadoes. This way looks at how much damage the tornado does on human built structures and trees. No one has even been able to directly measure the tornado's winds.=

=This is a link to story from BTN on ABC TV about the Ice land Volcano: =

[|Iceland volcano] = = .

=<span style="background-color: #00ff00; color: #ffffff; display: block; font-family: Georgia,serif; font-size: 120%; text-align: center;">Week Five: = = = =<span style="color: #41fb23; font-family: Georgia,serif; font-size: 120%;"> Reflection: = =this week I learned that Dimonds are made by coal being compacted under lots of mountains for millions of years. I also learned the layers of the earths structure and the crust ,then the Lithospere ,and then Asthenospere and then the mantle the outer core then the inner core.=

=<span style="color: #41fb23; font-family: Georgia,serif; font-size: 120%;">What are the Layers of the Earths Structure? =




 * 1) =The outer layer is called the Crust the Crust is 5KM thick=
 * 2) =The next layer is the Lithosphere the Lithosphere is 70KM thick=
 * 3) =The next inner layer is called the Asthenosphere the Asthenosphere is 800KM thick=
 * 4) =Next is the Mantle the Mantle is 2900KM thick=
 * 5) =Then the outer core the outer core is 2200KM thick=
 * 6) =Then the inner core and the inner core is 2900KM thick=

=<span style="color: #41fb23; font-family: Georgia,serif; font-size: 120%;">What resources do we use from beneath the earth? =

=Fossil fuels, coal, oil and natural gas, are a non-renewable sources of energy that are found beneath the Earth. These are made from plants and animals that lived up to 300 million years ago, like dinosaurs. When these run out, we will have to find other resources to use for energy.= =<span style="background-color: #00ff00; color: #ffffff; display: block; font-family: Georgia,serif; font-size: 120%; text-align: center;">Week 6: =

=<span style="color: #41fb23; font-family: Georgia,serif; font-size: 120%;">**Reflection:** = =<span style="font-family: 'Arial Black',Gadget,sans-serif;">This week I learned how the moon and the sun effect the earth and I also learned about the different types of volcanoes such as : = =<span style="font-family: 'Arial Black',Gadget,sans-serif;"><span style="color: #0000ff; font-family: 'Arial Black',Gadget,sans-serif;">Composite: The composite volcano **big** eruptions and they look extinct because they have snow on the top .<span style="color: #0000ff; display: block; font-family: 'Arial Black',Gadget,sans-serif; text-align: left;">Shield: = =<span style="color: #000000; display: block; font-family: 'Arial Black',Gadget,sans-serif; text-align: left;">they are not the biggest and the hot runny lava runs down the sides. = =<span style="color: #0000ff; display: block; font-family: 'Arial Black',Gadget,sans-serif; text-align: left;">Cinder cones: <span style="color: #000000; display: block; font-family: 'Arial Black',Gadget,sans-serif; text-align: left;"> they are found near other volcanoes but hey shoot out ash and cinder <span style="color: #0000ff; display: block; font-family: 'Arial Black',Gadget,sans-serif; text-align: left;">Spatter cones: <span style="color: #000000; display: block; font-family: 'Arial Black',Gadget,sans-serif; text-align: left;">this type of volcano shoots out hot lava balls <span style="color: #0000ff; display: block; font-family: 'Arial Black',Gadget,sans-serif; text-align: left;">Complex: <span style="color: #000000; display: block; font-family: 'Arial Black',Gadget,sans-serif; text-align: left;">this volcano is what i call mega it can form other volcanoes on the side of that volcano. = = = = = =<span style="color: #41fb23; font-family: Georgia,serif; font-size: 120%;">What are the different atmospheric layers above us**?** =

=The atmosphere has 5 layers. The first layer is the Troposhere. We get weather from this layer. The next layer is the Stratosphere. This is where airoplanes fly and is where the ozone layer is. The next layer is the Mesophere. There are lots of meteors and rocks that burn up here. Then there is the Thermosphere. This is where the space shuttle orbits around the earth. Then the furthest layer is the Exophere and this is the limit of our atmosphere.=

=<span style="color: #41fb23; font-family: Georgia,serif; font-size: 120%;">**What effect does the sun and moon have on the Earth?** =

=The moon effects ocean tides on earth. It also effects how the earth orbits. Tides are made because the Earth and the moon are attracted to each other, just like magnets are attracted to each other. The moon tries to pull at anything on the Earth to bring it closer. But, the Earth is able to hold onto everything except the water. Since the water is always moving, the Earth cannot hold onto it, and the moon is able to pull at it. This lifts the water up and then lowers it again.= = = =The Sun affects many things on Earth. One of the main things the Sun does is warm our planet, including the atmosphere. This energy affects our weather. It also affect how much day light we have on earth. Some places have more than others because it depends on where the sun is and where that place is.=

=<span style="background-color: #00ff00; color: #ffffff; display: block; font-family: Georgia,serif; font-size: 120%; text-align: center;">week 7 = =<span style="color: #0000ff; display: block; font-family: Georgia,serif; font-size: 120%; text-align: left;">Reflection: = =This week I learned that on one side of the earth if it is facing the sun the other is pitch black. but if they are on the top or the bottom of the earth if it is in the winter it is very dark because they are not getting much sun but if they are in summer it is very hot and bright because they are getting a lot of sun.=

=<span style="color: #4f47ff; display: block; font-family: Georgia,serif; font-size: 120%; text-align: left;">Did you know: = =All of the planets, except for Earth, were named after Greek and Roman gods and godesses. The name Earth is an English/German name which means 'the ground'.= = = =__<span style="color: #0000ff; display: block; font-family: Georgia,serif; text-align: left;">**How can comets,meteors and asteroids affect us?** __= = Asteroids are made up of rich organic molicules, volatles and metals and the metals can be used for re-entry shields.there is also water and ice which can be used for rocket prepelens and space dirt that can be used for radiation shielding.= = Meteors are made up of burning dust and rock. = = Comets are made up of ice and dust, with a few chunks of rock and possibly some organic (carbon) compounds. The ices that make the comet are water ice, dry ice (solid carbon dioxide), frozen ammonia, solid methane and a few common a tmospheric gases in solid form such as oxygen. How it effects us, the comet hits the earth and may squash buildings, cars etc and may even kill people. They sometimes come town to earth but it is like two tennis players hitting a ball at the same time them hitting each other has a very small chance but is still likely.= =[|this is a link about asteroids]=

= = = = = = =__<span style="color: #0000ff; display: block; font-family: Georgia,serif; text-align: left;">**How can and what is in our solar system affect us?** __<span style="color: #0000ff; display: block; font-family: Georgia,serif; text-align: left;">**The sun:** = == = = =Without its energy and its rays, life would not be possible on earth because our bones will be weak. Our trees and plants will not have good life and color and the animals won't have good growth and many things won't grow.= = =

== = = =<span style="color: #0000ff; display: block; font-family: Georgia,serif; text-align: left;">Jupiter: = =Because Jupiter has 20% more gravity that earth it sucks up= =some of the comets that are going to earth.=

== =<span style="color: #0000ff; display: block; font-family: Georgia,serif; text-align: left;">Moon: = =The moon effects the tides because the water is not attached= =to the earth so the moon pulls it and lets it go.=

=<span style="color: #0000ff; display: block; font-family: Georgia,serif; text-align: left;">All of the other planets: = =They sit there and make the night sky beautiful=

=<span style="background-color: #00ff00; color: #ffffff; display: block; font-family: Georgia,serif; font-size: 120%; text-align: center;">week 8 = =<span style="color: #0000ff; display: block; font-family: Georgia,serif; font-size: 120%; text-align: left;">Reflection: =

= **How do humans affect nature?** = =The reduction of the ozone layer is fromcarbon emissions from the burning lots of fossil fuels by humans. This affects the temperature on the earth and this can affect farmers with growing crops and other vegitation.= = Ozone layer also helps to stop temperature swings. So a thinner ozone layer will make high temperatures higher and the low temperatures lower. These changes affect most things on Earth, from plants, to human, to animals as well as the resources we all need.= = Destruction of habitat like deforestation (removing trees) causes animals to become threatened, endangered or extinct which then affects other animals that depend on them to survive.= = Air Pollution = =human activities such as making electricity can release things into the air, some of which can cause problems for humans,plants and animals. The types of pollution are smog, acid rain, the greenhouse effect which makes holes in the ozone layer.=

= water pollution = =Over 70% of the earth is water and everything needs water to live and grow. We all pollute the lakes ,seas and rivers. Our drinking water is getting more polluted every day. The effects of polluted water is that there is polluted drinking water and there will be polluted food if you water them with the polluted water.=

= **How has human use of land caused problems?** =


 * = =WHAT WE DO?= ||= =FOR OR BY?= ||= =AFFECT?= ||
 * =We chop down trees.= || =To build new home and to get wood called deforestation= || =removes animal habitats and uses resources that take a long time to regrow.= ||
 * =Pollute the water= || =To build new housing estates,factories and roads like freeways.= || =We take over land and waterways. Increasing populations can result in more waste which can end up in our water.= ||
 * =Digging deep= || =We make our land soft= || =Causing land slides and falling banks or rivers which can also pollute our water.= ||
 * =Increasing population= || =More housing, more factories, more waste.= || =Causing more air pollution, water pollution, deforestation and decreases the ozone layer which can then change our climate.= ||
 * =Produce carbon emissions= || =By factory smoke, car fumes, aerosol cans.= || =Changes our climate and make our temperature in winter colder and our temperature in summer hotter. This can affect lots of things like plants, animals, humans, flooding and droughts.= ||

=<span style="background-color: #00ff00; color: #ffffff; display: block; font-family: Georgia,serif; font-size: 120%; text-align: center;">week 9 =

= How are humans trying to reduce the impact on nature? =

=The best thing that humans can do to save the earth is to live in a sustainable environment. That is an environment that uses only resources that can be good for the earth and are able to be produced and used without harming our world.=

=Our biggest problem is climate change. So what can we do help stop climate change? We can increase the use of energy efficient and renewable energy sources like wind and solar power. We can also reduce the amount of energy we use and we generate by using solar panels and turning off appliances when we are not using them. By using solar panels we can save up to 8,000 lbs of CO2 per Year – that is a lot!=

=Easy things humans are doing around their home to reduce the impact on our environment:= = =
 * =We are walking or using public transport instead of cars therefore saving carbon emissions and also saving our ozone layer.=
 * =Stopping junk mail, so we can save on paper, printing and removal of trees.=
 * =Reusing shopping bags or buying cloth bags.=
 * =Using low flush toilets and ½ flush on things that go down ‘easy’.=
 * =Using CFC (ChloroFluoroCarbons) free products that do not destroy the ozone layer.=
 * =Buying things in bulk because this saves on packaging that you would eventually have to throw out, and also reduces the amount of waste produced by companies that make all the packaging.[[image:http://www.a2gov.org/government/financeadminservices/procurement/PublishingImages/recycle_logo.gif width="192" height="193" align="right"]]=
 * =Reusing whatever you can, including aluminium pie tins, glass, plastic cutlery, aluminium foil and newspapers.=
 * =Buying products with recycled contents.=
 * =Leave the grass clippings on the lawn, and starting a backyard composting bin for yard clippings and food waste.=
 * =Instead of throwing away things like furniture, kitchen items and clothing, look for a place to donate them.=
 * =Make recycling easy by putting recycle bins in the rooms where you use papers and other recyclable items.=
 * =Use water efficient shower heads.=
 * =turn off all appliances when you are not using them.=

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= If we use the list above our world will turn happy and healthy again. =

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=<span style="background-color: #00ff00; color: #ffffff; display: block; font-family: Georgia,serif; font-size: 120%; text-align: center;">week =

= Are we more dangerous to the world than = = natural disasters? = = = = = = = = = = = = **I believe natural disasters are more dangerous to the world than humans. This is because they happen without warning and you can’t predict or change them from happening. However, humans could end up more dangerous in the future if we don’t change the way we are treating our world** .= = = = At the moment humans are making changes to things they do and the energy and the resources they use. If humans keep doing good things for our environment, and look after our world and resources, our planet will be a healthier place to live. But if we don’t look after our planet, we will run out of natural resources and we will have to find other man made resources and this will mean we have to break down more of our planet and make more waste and that could damage our earth worse than any type of natural disaster. = = = = = = Natural disasters are more dangerous because we can’t control them. They are usually made by the core of the earth, the moon, or weather changes. They cause lots of death and more destruction than man-made disasters. Tsunami’s, earth-quakes, volcanos, bushfires, avalanches, landslides, tornados, floods and storms all can cause lots of deaths and damage to the environment and earth. = = =