Unit 1: Restless Earth SUMMARY Structure of the Earth Plates Volcanos, Earthquakes NAME & CLASS

1_______________________ 2_______________________ RESTLESS EARTH 1 Structure of Earth Use p4 to label the structure of the earth. 2 Moving Plates On the map above draw and label all the plates using p5 of the book. Show with arrows if plates are sliding, colliding, separating. Earthquakes are most common where plates slide / collide /separate Fold Mountains happen because plates Slide / collide / separate Volcanic Islands are common where plates Slide / collide / separate Continental Drift is________________________________________________________________ _______________________________________________________________________________ 1 1_______________________ 2_______________________ 3_______________________ 4_______________________ 4 2 3

3 Fold Mountains Fold mountains occur where plates _________________. An example of young fold mountains are the ____________________. These developed during the ________________foldings. Irelands mountains formed during the ______________foldings and are ___________________ years old. 4 Earthquakes Where do earthquakes occur _______________________________________________________ What is the centre of an earthquake called____________________________________________ What is used to measure earthquakes________________________________________________ What is a Tsunami ________________________________________________________________ An example of a Tsunami___________________________________________________________ Two ways Californians prevent damage from earthquakes 1________________________________________________________________________________ 2________________________________________________________________________________ CASE STUDY: SAN FRANCISCO In 1906 an earthquake devastated the Californian city of San Francisco. Buildings collapsed, roads cracked and fires spread all over the city killing thousands. What would be the effect of an earthquake measuring 5.5 on the Richter Scale. What machine measures earthquakes

A_____________________ B______________________ 5 Volcanos Label the features using p11 of book 6 Pacific Ring of Fire Look at Diagram 11 on P12 and name 5 countries located around the Pacific Ring of Fire CASE STUDY: ICELAND Iceland is a volcanic island. As the Mid Atlantic Ridge separates magma flowed up, cooled and formed the island. Hot volcanic springs provide heat and electricity for homes. Visiting volcano’s and hot springs makes Iceland popular with tourists. A_______________ B_______________ C_______________ B A Name the two regions above A_____________________ B______________________ KEY WORDS Plates Continental Drift Magma Lava Folding Epicentre Focus Seismograph Richter Scale Tsunami Pacific Ring of Fire Mid Atlantic Ridge Active / Dormant / Extinct Say whether the volcano below is Active / Dormant or Extinct Etna (Italy) Cotopol (Equador) Slemish (Antrim)