Liamd's+Disasters

=//**Hello my name is Liam i am AWESOME!**// =

Some different types of natural disasters are earthquakes, typhoons, sandstorms, storms, cyclones, tsunamis, hurricanes, whirlpools, bushfires, sinkhole, landslides, meteors and many many more.
====I believe the most dangerous natural disasters are earthquakes, because they can cause huge amounts of death and millions of dollars worth of damages, and also they can cause volcanoes to erupt and cause tsunamis to happen.====


 * Week 4 **

Q. what is used to measure natural disasters?

A. Earthquakes are measured by a Richter Scale, the higher the number the stronger the damage (the numbers go from 0 to 10 ten being the worst.)

Volcanoes are measured by the Volcanic Explosivity Index, the higher the number the bigger the explosion (the numbers go from 0 to 8 eight being the worst.)

The Saffir-Simpson Scale is used to measure the intensity of a hurricane, the higher the number the more intense the hurricane is (the numbers go from 0 to 5 five being the worst, getting up to speeds of 300km/h.)

The Fujita Tornado scale is used to see how big a tornado is and how much damage is caused, the higher the rating the more damage is caused (the ratings go from F0 to F5, F5 being the worst, at F5 the diameter of the tornado at it's base can be a kilometer long, causing incredible damage, F0 being a light tornado.)

Reflection:

This week I learned lots of different scales that are used to classify how bad natural disasters can be.

media type="custom" key="6102801" width="150" height="150"

Week 5 ** Q. what are the layers of the earth

A.The layers of the Earth are (in order from top to bottom)
 * 1) 0- 40km Crust
 * 2) 40- 400km Upper mantle
 * 3) 400- 650km Transition region
 * 4) 650-2700km Lower mantle
 * 5) 2700-2890km D'' layer
 * 6) 2890-5150km Outer core
 * 7) 5150-6378km Inner core

The inner core is extremely hot and is the hottest place on (in) Earth.

Q. what materials do we use from underground.

A. we use oil, iron, gas and water, these are the main resources from underground, that are used for lots, and lots of things.

Reflection:

This week I learned the layers of the earth and some of the materials that are found and used from underground.



**Week** **6** Q. What are the different atmospheric layers above us?

A. The different atmospherical layers above us are: Troposphere, Stratosphere, Mesosphere, Thermosphere, Ionosphere,

Q.What effect does the sun and moon have on the earth?

A. The sun is in our solar system and it can affect us by keeping us warm and by giving us light. The moon also gives us light at night so that we can see in the dark.
 * Week 7**

Q. How can what is in our solar system affect us?

A. The sun affects the earth by giving us day and by keeping us warm. The moon changes the tide and gives us light at night. Jupiter stops a lot of asteroids and meteors because it is so big, and so is it's gravity.

**Week 8**

Q. How do humans effect nature?

A. Humans can effect nature in a bad way by cutting down trees and demolishing animal homes. The good ways that humans effect nature are that we have been donating for new ways to help nature by saving water. By making homes for animals who's homes have been destroyed.

Q. How has human use of land caused problems?

A. In the past human use of other peoples land has caused racism with black people. Human use of endangered animal land has caused extinction. Human use of regular animal land has caused animals to become homeless and eventually die.

Reflection:

This week I have learned that landslides can even occur on a 40 degree angle!