GEOGRAPHY FOR 2023 & BEYOND
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sinkholes


Introducing Sinkholes
​

Objective: To find out why the ground sometimes opens up and swallows whatever is above. 

Sinkholes can happen in different locations at different times. Whether is be in the middle of a large Chinese city or the wetlands of Louisiana, USA. Watch the two videos below to get an idea what happens. Which one scares you the most?


​
Guatemala City - 2010

Task 1 - The image to the right is of one of the most famous sinkholes in the world. It happened in Guatemala City in 2010.

Complete the worksheet below by choosing one of the following two scenarios and completing the story. 


Scenario 1 - A driver of a car. Just leaving the large white building on the top right of the photo. The rain is beating down and your windscreen wipers are on full speed as you reach the cross roads in front and turn left onto 6A Calle (see Google Map below). You are just approaching the junction with 11 Avenida when you hear a strange noise and your car starts vibrating.

At first you think you have a flat tyre, but then to your horror .......


Scenario 2 - A worker in the tyre factory on the cross roads. You are just coming towards the end of the morning shift and have been moving and loading tyres onto a delivery lorry stationed in front of the factory. Your waterproof jacket is no match for the lashing rain. The driver of the lorry asks you to sign the forms to say he can leave. You shake his hand, turn around to go back inside and then it starts, like a giant plug draining into the abyss.

​Startled, you turn around .......
Picture

Agrandir le plan
task 1 - guatemala sinkhole worksheet

Why Do Sinkholes Happen? 

task 2 & 3 - locating recent sinkholes
On lots of news reports about major sinkholes appearing, you will hear the name of a particular rock mentioned again, and again.

​This rock is very special and we need to understand its formation and then how over time it can help sinkholes to form. 


Task 2 - Study the map to the right.

The purple areas indicate areas that have Karst scenery.

These areas would indicate that there is limestone under the ground.  

Label the following places onto the worksheet.

1. Guatemala City Sinkhole 2010 (video) & (map)
​
2. Guangdong Province, China. Sinkhole 2013 (video) & (Map)

3. Florida Sinkhole, USA 2013 (video) & (map)


Task 3 - What seems to be the relationship between the three places above and the existence of limestone?

Write your answer on the worksheet.



Task 4 - Watch the video to the right about how limestone forms.

Create a three or four sequence cartoon to show the formation of limestone and label it to show the features you would see today.

​Use the worksheet outline to the right to help you. 
​
task 4 - limestone formation cartoon outline


​Task 5
- Sinkhole Formation.  Click on the link below to watch a basic 4 stage sequence of sink hole formation.
​ 
how a sink hole forms

​Now, create your own A4 annotated diagram to show the formation / making of a sinkhole. 


Task 6 - **Optional Task - Sinkhole Model*


You will be designing and making a model of a sinkhole.

​
Use this A3 Planning Sheet to start your preparation for the next lesson.  

Picture
Picture
Source http://www.tutor2u.net/geography/blog/sinkholes-uncovered

All content copyright geographypods unless otherwise stated. 
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Picture
  • Home
    • About & Contact
    • Discover The World Education >
      • Sample Lessons IGCSE/IBDP
    • Blog
    • Site Testimonials
    • Photos (Free to use) >
      • Floods
      • Snow & Mountains
      • Coastal
      • Tropical
      • Urban
      • Sports
  • Reactive
    • Qatar World Cup 2022
    • Famous Refugees
    • Over the Horizon
    • Migration to the EU. >
      • Classroom Display
    • Hurricane Matthew 2016 >
      • Hurricane Matthew Display
    • Nepal Earthquake 2015
    • Ebola 2014
    • Don't Panic - The Truth About Population
    • Israel & Palestine Group 3
    • Global Village + Maths
    • IB Sample Lesson 2017
  • G11-12 IB
    • IB Geo 2017 Onward
    • IB Geo 2009-18 Archive >
      • IB Induction Cross Curricular
      • Global Interactions (70 hrs)
      • Hazards and Risk Management (30 hrs)
      • Freshwater - Issues and Conficts (30hrs)
      • Sports, Leisure & Tourism (30 hrs)
      • Internal Assessment >
        • IA 2018 >
          • Sitges & Calafell Photos 2013
          • Sitges & Calafell Video >
            • Debrief
      • IB Geography Exams >
        • G11 Mock
        • G12 Mock
    • Extended Essay
    • IB Geography & TOK
    • Studying Geography at Uni
  • G9-10 GCSE/iGCSE
    • Theme 1 Population & Settlement.
    • Theme 2 - Natural Environment
    • Theme 3 - Economic Development
    • Coursework >
      • IGCSE Berlin Fieldwork
      • IGCSE Rivers France
      • IGCSE Barcelona Fieldwork
    • IGCSE Exam Revision
  • G6
    • G6 Factfulness
    • Introducing Tectonics
    • Volcanoes
    • Earthquakes
    • The New Silk Road
    • Map Skills
    • Tornadoes
    • The Ice Man
    • Landscape in a Box >
      • 2016 Efforts
      • 2012 Efforts >
        • 7X
        • 7Y
    • End of Year Exam
    • Parent Information
  • G7
    • G7 Factfulness
    • 8850 Top of the World
    • Geography of My Stuff >
      • Journey of a T-Shirt
    • Another Shopping Centre?
    • Sinkholes
    • Walls
    • Carcassonne Connection
    • Renaissance Day
    • End of Year Exam
  • G8
    • G8 Factfulness
    • Development
    • Global Biomes
    • Climate & Rainforest
    • The Tribe
    • Palm Oil & Me >
      • Palm Oil Assessment
    • Introducing Waterfalls
    • Tourism Blessing or Curse?
    • Niagara Redeveloped DME
    • IGCSE Options
    • End of Year Exam