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1. What are tornadoes? Tornadoes are violent, wildly spinning columns of air.

2. Where do tornadoes come from? Tornadoes come from under a cumulonimbus cloud and make contact with the ground.

3. Draw a diagram of a tornado. Place the following labels on it - rotating funnel, supercell, thundercloud and updraft winds (Figure 1 in Jac Plus might help). Be ready to describe the diagram to the class.

4. Watch this video (first video only on tornadoes): http://video.nationalgeographic.com/video/101-videos/tornadoes-101 Then answer the following:

a. How fast do winds  move inside a tornado? A wind inside a tornado can move up to 4828 kilometres per hour.

b. How many tornadoes hit the USA per year? 800 tornadoes hit the the USA per year.

c. How long do tornadoes last? Torndoes can last up to 20 seconds to an hour.

d. How do people shelter from tornadoes? People shelter from tornadoes by going into their basement, staying away from any windows or climbing into a 1st story bathtub.

5. What is the Fujita scale (Table 1)? What is the difference between and E1 and E5 tornado? The fujita scale is how tornadoes are ranked, the difference between E1 and E5 tornado is that the E1 is moderate and E5 is incredible.

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GROUP THREE - CYCLONE YASI (4.5 JACPLUS).

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GROUP THREE - CYCLONE YASI (4.5 JACPLUS).

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1. When did Cyclone Yasi hit Queensland?

Ans: February 3rd

2. How big was Cyclone Yasi and how far did it move inland?

Ans: 400 km wide 30 km diameter, traveled 900 km inland.

3. Explain what the conditions would have been like during Cyclone Yasi. Would they have been different if it took place at a different time of day? With no power, gale force winds, floods and rain.

4. Look at Figure 1. Which two towns bore the brunt of the very destructive winds as the cyclone crossed the coast?

Ans: Cardwell and nnisfa

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1. What is a storm surge? A righsing of the sea as a result of wind and atmospheric pressure.

Storm surge is an abnormal rise of water generated by a storm, over and above the predicted enormous tide.

2. How do cyclonic winds, torrential rains and storm surge affect people in low lying coastal areas? Tropical Cyclones are low pressure systems that form over warm tropical waters and have gale force winds (sustained winds of 63 km/h or greater and gusts in excess of 90 km/h) near the centre

Storm surge is one of the main causes of coastal inundation.
Coastal inundation is the flooding of normally dry, low-lying coastal land,mainly caused by severe weather events along the coastal rivers. Torrential rain can cause flooding

3. Look at Figure 3 - Why is a storm surge a problem for many coastal areas that get hit by tropical cyclones?

Because coastal regions that were hit by cyclones would cause even more devastation and destruction if hit by a storm surge.

4. Find a diagram of a tropical cyclone. Label this diagram and understand how it works so that you can explain it to the class.

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Each person in your group is to select a role to play from the following:

-Padleteer - the person who write their group's information into padlet

-Textbook researcher - the person who finds the answers to your group's questions from Jac Plus

-Internet researcher - the person who finds answers to your group's questions from the internet - you may also wish to add interesting information about your groups topic that hasn't been asked in the questions

-Presenter - the person who presents your group's findings to the class.

-All rounder - you help here, there and everywhere!

IMPORTANT: You are each assigned to a role but you may help out people in other roles

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GROUP ONE - CYCLONES (4.5 JACPLUS)

1. What is a tropical cyclone?

Ans: Cyclones intense low pressure systems producing sustainable wind speeds in excess of 65 km/h

2. Where do tropical cyclones develop?

over tropical waters

3. What conditions do tropical cyclones need in order to develop?

needs warm and cold air

4. What are topical cyclones called in other parts of the world?

hurricanes and typhoons

5. What is the connection between warmth of the seawater and topical cyclones?