https://padlet.com/alexchanou/lou9h6rlgfz5 Κατασκευασμένο με τις καλύτερες προθέσεις en-us 2018-12-13 18:49:33 UTC 2026-03-16 20:31:42 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Bigthunderstorm.png alexchanou https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324700400 An avalanche is the large movement of snow down the side of a mountain. They occur when the snow becomes too loose and as it slides down it mixes with air and water to cause a powerful and dangerous disaster.]]> 2019-01-27 17:14:05 UTC https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324700400 alexchanou https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324700937 An earthquake occurs when the plates of the earth start to move and the ground begins to move and shake. Earthquakes can range from the very big (which can destroy cities) to the very small (which you might not even notice). The size of earthquakes is measured on the Richter scale.]]> 2019-01-27 17:18:27 UTC https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324700937 alexchanou https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324701246 A drought happens when there has been no rain in a place for a long time. The land becomes too dry and it impossible to grow any plants or vegetables on the land. Droughts sometimes occur in very hot countries. A drought may result in a famine; this is when there is not enough food to feed the people and they start to starve (die from not eating).]]> 2019-01-27 17:20:48 UTC https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324701246 alexchanou https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324701751 A hurricane, which originally means 'big wind', is most likely to occur in late summer in America. They are caused by low air pressure and thunderstorms and result in strong winds and heavy rain. When they happen in the Atlantic Ocean we call them hurricanes; however, they are called Typhoons when they happen in the Pacific Ocean.]]> 2019-01-27 17:25:11 UTC https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324701751 alexchanou https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324701884 When a volcano erupts it sends hot red lava flowing from its top. Lava is a type of liquid rock that when  cools turns back into rock. Lava is Magma which comes from below the crust of the earth. Eruptions are caused by the plates of the earth moving and the pressure makes magma push up through the cracks in the earth.]]> 2019-01-27 17:26:11 UTC https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324701884 alexchanou https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324702348 A flood occurs when a large amount of water covers the land. Too much rain usually causes floods. Floods also happen when the water level in a river becomes too high. As sea levels continue to rise, the risk of flooding increases.]]> 2019-01-27 17:29:44 UTC https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324702348 alexchanou https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324702542 A tsunami is a series of fast moving waves in the ocean caused by powerful earthquakes or volcanic eruptions.]]> 2019-01-27 17:31:22 UTC https://padlet.com/alexchanou/lou9h6rlgfz5/wish/324702542