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Published byRoberta Lee Modified over 8 years ago
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Earthquakes Lesson Objectives: To understand why earthquakes occur To understand how we measure earthquakes. To understand how to prepare/plan for earthquakes
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Can you help me find my best mate Boots?
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WE FOUND HIM!!! Now, lets go and see Granny she lives in San Francisco.
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What happened to the city?!?!
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Granny, What happened to the city?!? Dora, you shouldn’t be here! A dangerous earthquake happened and almost everything was destroyed! They said it was a 7.1 whatever that means.
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STOP!!! YOU CANOT GO IN THERE!! Why officer? Because an earthquake happened and it’s not safe Okay mate ;) What caused it? Snip, snip,snip
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Dora, STOP!! OUCH! WHAAAAA? Its dangerous here! Most earthquakes happen along plate margins or boundaries. Earthquakes happen when two plates either collide, pull apart, overlap or rub against each other!
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BOOTS! DORA!! NO! You will never have boots back!
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Activity 1: Cause of Earthquakes Remember the tectonic plates from last lesson? When these giant plates meet tension builds up and when it gets released we get earthquakes. clip
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Activity 1: Cause of Earthquakes Copy and complete this sentence adding the right missing word from the box below. E___________ occur when t________ builds up between two tectonic p______ is released causing the plates to move v_________. Earthquakes violently plates tension
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Activity 2: Location, location Focus - The place where the plates move. Epicenter – The place on the surface directly above the focus. Add Focus and Epicenter to your glossary
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“The faster you try and throw a ball the less accurate the throw” (speed-accuracy trade off) Activity 2: Location, location Write your own description of how distance from the epicentre affects how dangerous an earthquake is.
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Activity 3: Measuring earthquakes Clip Add the word magnitude to your glossary. Copy and complete this sentence: The R_______ scale is used to calculate the m___________ of an earthquake. This means how much energy was released by the e____________.
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Activity 4: Planning We cannot predict if an earthquake will occur, but we can prepare for it. One of the things to do is to make an earthquake emergency kit. Make a list in your exercise book of ten things you think you should have in your earthquake kit (e.g. water) Peer assess your earthquake lists.
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Activity 4: Planning Earthquake drill Now its your turn. When your teacher gives you the signal you must: ‘drop, cover and hold’.
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