Substrand: "8.7 The fragile earth" (12 periods)

This sub-strand deals with the fragile earth. The earth is made up of layers – molten materials near the centre and solid rocks near and at the surface. The solid layer is the Lithosphere. It floats on the mantle (molten layer.) The solid crust consists of huge pieces called plates. The movement of these plates produces great forces. This is plate tectonic. The results of these forces are geological events such as earthquakes and volcanoes. Scientists believed that the earth is about 4.5 billion years old.

Learner's should:

Learner's should:

Learner's should:

8.7.1 know earth’s layers and movement of earth’s plates (Plate tectonic) (k)

8.7.1.1 describe the main Earths Layers: Crust, Mantle and Core
8.7.1.2 describe that Lithosphere is made of solid rock (plates) that continues to move

8.7.2 understand the different types of earth’s plate movement (u)

8.7.2.1 explain the movement of the earths plates: i. pulling away ii. dives iii. slide horizontally iv. plate interact

8.7.3 be able to show model of plate tectonic (s)

8.7.3.1 construct models to demonstrate plate tectonic: i. pulling away ii. dives iii. slide horizontally iv. tectonic plates

8.7.4 know the geological features (k)

8.7.4.1 describe the geological features which are results of tectonic activities: i. earthquakes ii.volcanoes iii. fault lines

8.7.5 know the units to measure strength of earth quakes (k)

8.7.5.1 identify the level on the Richter & Mercalli scales which show the strength of earthquakes

8.7.6 know the cross – section of erupting volcano (k)

8.7.6.1 draw and label a cross- section of an erupting volcano

8.7.7 appreciate that the seismic wave develops within Solomon Islands is measured by Geology Division (a)

8.7.7.1 make a visit to Geology office close to you school
8.7.7.2 display in class pictures of earth quake and volcano in Solomon Islands

8.7.8 know that the earth has been in existence for a very long time (k)

8.7.8.1 describe different geological times scale of the earth
8.7.8.2 describe fossils and their use to predict the ages of rocks