Answer:
Ask the students to read the paragraph on page 18
of the Student’s Book headed ‘Earthquakes’ and
‘It’s a fact’. They should also look at the diagram
of how an earthquake happens. Explain that some
earthquakes are more powerful than others and
that scientists have found ways to measure their
magnitude, which is the amount of energy
earthquakes release. Explain that to do this, they
use a seismometer, which is an instrument that
records the magnitude on a seismograph, and that
the Richter scale is a scale used to measure the
magnitude of earthquakes. (‘Seismic’ means
concerning vibrations of the Earth.) Then ask them
to read the table that explains the Richter scale,
and the rest of the information about earthquakes.
While waiting to try the Skills Book activity below,
they could continue to read the Student’s Book (the
sections of page 19 headed ‘Tsunamis’ and ‘Living
in places that have earthquakes, volcanoes, or
tsunamis’.
Using the Skills Book
Activity
Different groups of students could work
Step-by-step explanation: