introduction to natural hazards learning intention to understand what a natural hazard is. success...
TRANSCRIPT
Introduction to natural hazards
Learning intention
To understand what a natural hazard is.
Success criteriaTo be able to give some examples of natural hazards.
What is a natural hazard?
Activity 1Read this statement:
‘Natural hazards are sudden events that occur in nature.’
Placemat activity
Take an A3 sheet of paper. Draw a circle in the middle and write ‘Natural hazards’ in the centre.Now split your page into four.
Natural hazards
• Each person must now write down some examples of what they think are natural hazards.
• After 1 minute spin the page round and look at what each person has written.
• You can then share your ideas as a class.
• One person from each group will write some examples on the board.
What are natural hazards?
• How many natural hazards did you find as a class? Did you miss any out? Watch the next slide to find out.
What are natural hazards?
Volcanoes
Earthquakes
Tsunamis
Hurricanes, cyclones and typhoons
Forest fires
Ice
Landslides
Tornados
Floods
Snow storms
Avalanches
Hail stones
Natural disasters
• The worst natural hazards are called natural disasters.
• An earthquake in a very remote area will not affect many people.
• An earthquake in a large city will affect many people.
Activity 2: Worksheets 1 and 2
Graph activity
• Look at your list of the top 10 worse natural disasters.
• Complete the graph.
Natural disasters
Table 1: Top 10 natural disasters
Rank Natural disaster type
Location Year Deaths
1 Floods China 1931 4,000,000
2 Floods China 1887 2,000,000
3 Earthquake China 1556 850,000
4 Cyclone Pakistan 1970 500,000
5 Cyclone India 1839 300,000
6 Earthquake Turkey 526 250,000
7 Earthquake China 1976 240,000
8 Earthquake China 1920 230,000
9 Earthquake Haiti 2010 220,000
10 Earthquake (Tsunami)
Indian Ocean
2004 210,000
Top 10 natural disasters by deaths
0
500000
1000000
1500000
2000000
2500000
3000000
3500000
4000000
4500000
China,
193
1
China,
188
7
China,
155
6
Pakist
an, 1
970
Indi
a, 1
839
Turke
y, 52
6
China,
197
6
China,
192
0
Haiti,
2010
Indi
an O
cean
, 200
4
Location, year
Num
ber
of
deat
hs
Introduction to natural hazards
Learning intention
To understand what a natural hazard is.
Success criteriaTo be able to give some examples of natural hazards.
Structure of the Earth
Learning intentionTo understand the internal structure of the earth.
Success criteria-Can identify and name the different layers that make up the Earth.-Can show how the different layers differ in thickness from each other.
Activity 1: Partners
Draw the inside of the Earth.
(Worksheet 3)
Activity 2: Class (share and discuss)
Who do you think is correct?
Why?
Would you make changes to your diagram?
Activity 4
Can you name the different layers of the Earth?
Write them down on your whiteboard.
1.
2.
3.
4.
Inner core
Outer core
Mantle
Crust
Structure of the Earth
Activity 5: Worksheet 4
Crust (5–40 km) = 50 – 400 Hampden Parks
Mantle (2885 km) = Hollybrook to Tripoli, Libya
Outer core (2270 km) = Hollybrook to
Podgorica, Montenegro
Inner core (1216 km) = Hollybrook to
Lappeenranta, Finland
Activity 6: Partners
Use the plasticine to make a model of the Earth.
You must include the inner core, outer core, mantle and crust.
Show the different thicknesses of each layer.
Structure of the Earth
Learning intentionTo understand the internal structure of the earth.
Success criteria-Can identify and name the different layers that make up the Earth.-Can show how the different layers differ in thickness from each other.
Plate tectonicsLearning intentionTo understand how plate tectonics caused continental drifting.
Success criteria-Can explain what plate tectonics is.-Can show how the Earth’s crust plates moved and caused the continents to drift apart.
Activity 1: Worksheet 5
What is plate tectonics?
The Earth's crust consists of a number of moving pieces or plates that are always colliding or pulling apart.
These plates float on a partially molten mantle beneath. The molten layer is driven by heat from the Earth's inner core.
Plate tectonics video
Activity 2: Class (website)
Continental drift:
The drift of the plates across the surface of the Earth has been going on over millions of years, and is still changing the outward appearance of the Earth. When you look at the map of the world, you see how well the east coast of North and South America fits into the west coast of Europe and Africa. Over millions of years these continents have slowly drifted apart.
Continental Drift Example 1
Activity 3: Class (website and game)
Naming the continents
Game
Activity 4: Worksheet 6
Use the map above to check you have correctly labelled the continents. Correct any that you need to.
Activity 5: Worksheet 7
When placing the different continents together think about what shapes fit together and where they are currently situated.
Plate tectonicsLearning intentionTo understand how plate tectonics caused continental drifting.
Success criteria-Can explain what plate tectonics is.-Can show how the Earth’s crust plates moved and caused the continents to drift apart.
VolcanoesLearning intentionTo find out what causes volcanoes and to compare the hazards and benefits they present.
Success criteria-Can explain what causes them. -Can identify where they are most likely to be located and explain why.-Can compare the hazards and benefits of living near a volcano.
Activity 1
Interesting fact
The word ‘volcano’ comes from the name of the Roman God of fire, Vulcan. Vulcan was said to have had a forge (a place to melt and shape iron) on Vulcano, an active volcano on the Lipari Islands in Italy.
Activity 2: Think, pair and share
1. What is a volcano?
2. Discuss what you think causes volcanoes.
Activity 3: Worksheet 8
Your guess/reasoning about what causes volcanoes is your theory!
Write down your theory in Worksheet 8.
Activity 4
Now we are going to research your theory and see if it is true.
This website will tell you a bit more about volcanoes.
Volcanoes
Activity 5What is a volcano?
A volcano is a conical hill or mountain formed by material from the mantle being forced through an opening or vent in the Earth's crust.
Activity 6: Worksheet 8Vent
Side vent
Magma chamber
Conduit
Ash cloud
Lava
Crust
Activity 8: Group work
In groups of four make a cartoon strip to show how a volcano erupts. Remember to show the different stages.
Key words:lava volcano surface platesmantle hot crust erupt magma
Activity 9: Worksheet 9
As a group assess how you worked as a group and complete the grid in Worksheet 9.
Activity 10: Peer assessment
Swap your poster with another group’s.Peer assess their poster using ‘Three stars and a wish’ on
Post-it notes.
When peer assessing link back to the task:- Do they correctly and clearly explain how a volcano
erupts?- Do they show the different stages?- Does their cartoon strip contain all the key words?- Does their cartoon strip contain relevant diagrams?
Activity 11
There are three different ways to classify a volcano:
1. Active volcano – one that is erupting or likely to erupt at any time.
2. Dormant volcano – one that is temporarily inactive, but could erupt in the future. The word ‘dormant’ means sleeping.
3. Extinct volcano – one that is unlikely to erupt again.
Eruption = the release of lava, rocks and gases from a volcano.
Activity 12: Worksheets 10 and 11Task: To find out where ‘active’ volcanoes are most
likely to be located.
Carousel activity1. Organise class into groups of seven.2. Within each group give each member one of the
following areas (write down your area on a label and wear it).1. Oceans 2. North America3. South America
4. Europe 5. Africa 6. Asia 7. Australia
3. Go and find your partners that have the same label.4. With your partners find out if your area has ‘active’
volcanoes. Complete Worksheet 10.5. Go back to your main group and share your findings
so you can complete your maps in Worksheet 11.
Activity 13Most volcanoes are found along a belt, called the Ring of Fire, that encircles the Pacific Ocean. Volcanic activity also occurs in such places as Hawaii, Iceland, southern Europe and at the bottom of the sea.
Activity 14: Worksheet 12• Most of the world's volcanoes lie along the Ring of Fire, a zone of
volcano and earthquake activity along the rim of the Pacific Ocean.• Although the Ring of Fire covers only about 1% of the Earth's
surface, it has more than half the world's active volcanoes. • There are about 350 historically active volcanoes in this zone.
Activity 15What causes volcanoes? Answer
Plate tectonics theory:Interactive view of tectonic plates
Links between plates and volcanoes• Scientists have developed a theory, called plate tectonics, that explains why most
volcanoes -- as well as most earthquakes and mountains -- occur only in certain places.
• The Earth’s crust is split into seven pieces called plates.• Most volcanoes are formed where two plates collide. • Volcanoes can also be formed when two plates spread apart. This usually takes
place on the ocean floor. As the plates move apart, magma below the crust moves up between the plates.
Magma theory:• A number of volcanoes -- for example those in Hawaii -- lie far from plate boundaries. • Some scientists believe such volcanoes develop when a huge column of magma
rises from inside the Earth up to the surface. Part of this magma breaks through the crust and forms a volcano. This is sometimes called a ‘hot spot’.
Quiz
Plates colliding
Plates move apartHot spot
Activity 16: Worksheet 13 – Section A
What are the dangers of a volcano?
Video of volcano erupting
Video of lava flow
Video of volcano erupting in Chile1. Hot lava
2. Rock falls
3. Mud flows
4. Tsunamis (if volcano erupts under the sea)
5. Clouds of ash
6. Poisonous gases
7. Dark skies, severe winds and heavy rains may follow an eruption for months afterwards.
Effects on people and the environment1. Buildings are destroyed and people are made homeless.2. People are killed.3. Clouds of ash cover plants, making them inedible.4. Poisonous gases kill people and animals.5. Dust causes lung disease and illnesses to the survivors.
Activity 17
Lava destroys everything it engulfs but, because it usually flows quite slowly, it rarely kills people. There is more danger from the hot gas and volcanic bombs of rock and ash, which can sweep down a volcano’s slopes at speeds of 120 mph.
How fast is that? 120 mph video
So what are the benefits of living near a volcano?
•The ash from volcanoes contains minerals which make soil very fertile. This makes the soil very good for farming and growing things.
•A big economical advantage of volcanoes is that they generate tourism, which gives locals jobs at hotels, etc. A country such as Hawaii gets a lot of income from tourists.
•Volcanoes provide spectacular scenery.
•Volcanoes form precious stones, therefore mining is carried out, which also gives locals jobs.
Activity 18: Worksheet 13 – Section B
One in 10 people in the world live within danger range of an active volcano.
Activity 19: Worksheet 14Diamond 9 Activity
In groups sort out the cards into a diamond shape by putting the most important statement at the top and the least at the bottom.
Question: What are the benefits of living near a volcano?
Activity 20: Game
Despite the danger that active volcanoes present, many people choose to live on their slopes. Scientists are sometimes able to predict eruptions and warn those at risk.
Watch this video Predicting eruptions
Try this game Responding to volcano game
VolcanoesLearning intentionTo find out what causes volcanoes and to compare the hazards and benefits they present.
Success criteria-Can explain what causes them. -Can identify where they are most likely to be located and explain why.-Can compare the hazards and benefits of living near a volcano.
EarthquakesLearning intentionTo find out what causes earthquakes and to compare how we respond to them.
Success criteria-Can explain what causes them. -Can identify where they are most likely to be located and explain why.-Can compare how developed and developing countries respond to them.
Activity 1: Think, pair and share
1. What is an earthquake?
2. Discuss what you think causes earthquakes.
Activity 2: Worksheet 15
Your guess/reasoning about what causes earthquakes is your theory!
Write down your theory in Worksheet 15.
(Only complete Q1 of worksheet.)
Activity 3
Now we are going to research your theory and see if it is true.
This film will show you an earthquake.
Earthquake video
Activity 4: Worksheet 15
What causes earthquakes? Answer
(Complete Q2 and Q3 of worksheet.)
Activity 5: Worksheet 16
A useful way of measuring earthquakes is by measuring the amount of damage they cause.
The scale used to measure the damage caused by earthquakes is called the Mercalli scale. There are 12 ratings in the Mercalli scale.
In groups of three put the 12 stages in the correct order.
Not felt.
Slight external damage.
Vibrations like the passing of a lorry.
Chimneys broken, people run outside.
Bridges and dams collapse, railway lines
bend.
People in cars stop, partial collapse of
buildings.
Broken crockery, everyone feels it.
Felt when at rest.
Ground surface opens up, pipes burst.
Objects hurled into the air, areas devastated.
Landslides, buildings destroyed.
Cars rock and loose objects move.
Activity 6: Worksheet 17
Mapping from memory
In groups of four complete your map to show where earthquakes have taken place this week.
Each member of the group will take a turn to look at the map showing earthquake locations. They must then return to the group and fill in your blank map while trying to remember where the locations should be marked.
Answer
Activity 7: Worksheet 18
In your group look at your completed map. Discuss why you think the earthquakes are located at these points.
Write your theory in your worksheet.
Answer: Because they are near plate boundaries. Movement of plates against each other can cause fault lines (cracks in the Earth’s crust), which can lead to earthquakes.
Activity 8: Worksheets 18 and 19We are now going to look at how developed and
developing countries respond to earthquakes.
Activity 9: Worksheet 20 and Information sheet A
We will do this by comparing the three Ps of the earthquakes in Haiti in 2010 and San Francisco in 1989:
•Preparation – How well had they prepared (evacuation plans, emergency services etc.) ?
•Prediction – Did they predict the earthquake?
•Protection – Were there buildings designed to withstand an earthquake?
Video from Haiti
Video of San Francisco earthquake
Activity 10: Think, pair and share
Discuss why you think there were differences in the injury/death tolls and the damage caused to buildings between the Haiti earthquake and the San Francisco earthquake.
Activity 11: Worksheet 21Diamond 9 Activity
In groups sort out the cards into a diamond shape by putting the most important statement at the top and the least at the bottom.
Question: What are the important factors to increase the survival rates during and following an earthquake?
EarthquakesLearning intentionTo find out what causes earthquakes and to compare how we respond to them.
Success criteria-Can explain what causes them. -Can identify where they are most likely to be located and explain why.-Can compare how developed and developing countries respond to them.
Activity 1: Lesson starter
Can you name the different layers of the Earth?
Write them down on your whiteboard.
1.
2.
3.
4.
Inner core
Outer core
Mantle
Crust
Tsunamis
TsunamisLearning intentionTo understand how tsunamis are made
Success criteria-Can research and select relevant information.-Can explain what a tsunami is.-Can describe what causes a tsunami.-Can successfully work in a group.
Activity 2
The start
Video
Activity 3: Worksheet 22
In groups make a poster to describe:
1. what tsunamis are
2. how they are made.
Important: You will have to present your completed poster to the class.
Your poster must include a diagram.
Activity 4: Worksheet 23
The explanation!
Video
You should now use Worksheet 23 to assess your group’s performance.
Activity 5
Why is learning important?
Answer
Activity 6: Walkabout talkabout
Instructions:
1. Split into three groups.2. Each group should choose a ‘scribe’ and have a different coloured
pen.3. Each group should add as many answers to their poster in the time
given.4. Each group should then move on to the next poster. Before you
start adding your own answers you should read the previous group’s and add a cross, tick or question mark to show if you agree, don’t agree or need the other group to explain their answer.
The poster titles are:
1. What are tsunamis?2. What are the effects of tsunamis?3. Why is it important to learn about tsunamis?
TsunamisLearning intentionTo understand how tsunamis are made
Success criteria-Can research and select relevant information.-Can explain what a tsunami is.-Can describe what causes a tsunami.-Can successfully work in a group.
Mini topic booklet
Congratulations, you are now ready to start your mini topic.
TV broadcast
• For the remainder of the topic your classroom will become a TV newsroom.
• Your task is to work in groups to produce a news report on a recent natural disaster.
• Your broadcasts will be filmed!
Learning intention
• To produce a TV news report on a natural disaster.
TV news report on a natural disaster
TV news report on a natural disaster
Success criteria• You should be able to clearly explain two
reasons for investigating your mini topic.• You should use the words ‘location’ and
‘change’ when explaining your reasons. (For example: I chose to investigate the Haiti earthquake to understand more about why it happened, its location and how the country changed after this.)
• Your report should make a contrast. (For example, you may wish to contrast why so many people died in Haiti compared to the San Francisco earthquake.)
Activity 1: What makes a good broadcast?
As a class we must decide on the criteria for a good broadcast.
Think, pair and share•Think – on your own, think about what makes a good news story.•Pair – with your partner discuss your ideas and write them below.•Share – share these ideas as a class.
The roles
• Newsreader
Will read the news report to the whole of the class. Will also help to decide on what information the report should contain.
• Writer
Will produce a script for the newsreader. Will also help to decide on what information the report should contain.
The roles
• Director
Will be responsible for ensuring that the news report is produced on time. Will make sure the report is of the correct length and contains the required information. Will be responsible for rehearsals and making sure everyone is working together. Will also help to decide on what information the report should contain.
• Runner
The runner’s job is very important. They will make sure everyone in the news team has the materials they need for working, for example paper, pens, information. The runner will also count in the newsreader during the live report. The runner will also help to decide on what information the report should contain.
Some ideas
• Introduction of presenter• Headline story with newsflash, eg ‘Bridges collapse!’• Location of event• Time of event• Description of what happened• Key facts and figures• Eyewitness accounts• Clear voice• It should make sense• It should be informative• Be creative!
• Activity 2
The following should be completed and handed to the station manager (teacher):
group name (TV station name), group roles (director, newsreader, writer, runner)
Activity 3
You are under pressure to write a newsflash. There has been a major incident somewhere in the world and your news team will be going live in 1 hour’s time!
In the next 10 minutes you must do the following:
Complete a spider diagram (mind map) of ideas for your script and presentation.
Place your headline in the circle to begin your diagram.
Learning intention
• To produce a TV news report on a natural disaster.
TV news report on a natural disaster
TV news report on a natural disaster
Success criteria• You should be able to clearly explain two
reasons for investigating your mini topic.• You can use the words ‘location’ and ‘change’
when explaining your reasons. (For example: I chose to investigate the Haiti earthquake to understand more about why it happened, its location and how the country changed after this.)
• Your report should make a contrast. (For example, you may wish to contrast why so many people died in Haiti compared to another earthquake in a rich country.)
Plenary
• What new thing did you learn today?• How could your learning help you?• How did you learn today?• What helped you learn today?• Could you use this learning in another
subject?• What capacity did you develop today –
SCRE?• What do you want to learn more about?• Where could you learn more about this?