At the gorge 0 Overview Using this Resource Connecting to the Curriculum Marking Student Responses Further Resources This task is about how rock layers are formed. Question 1Change answer The sides of a river gorge have layers of earth like those shown in the diagram. It is most likely these layers were formed by earthquakes and heavy rainwater erosion and siltingvolcanoes and foldingprolonged droughts and high windsglaciers and weatheringearthquakes and heavy rainwater erosion and siltingvolcanoes and foldingprolonged droughts and high windsglaciers and weathering Question 1Change answer What is the oldest layer of rock? limestonesandstonemudstonelimestonesandstonemudstone A scientist said that the gravel had been deposited after the folding occurred. What evidence supports this statement? Explain your answer. Question 1Change answer Tim and Susan live on a hilly farm 20 km from the coast. Tim said, "Tens of thousands of years ago the farm would have been on the side of a volcano." Susan said, "No. It would have been under the sea then." This is a diagram of the rock layers underneath their house: Who was right? TimSusanTimSusan Explain your answer: Task administration: This task can be completed with pencil and paper or online. Level: 4 Curriculum info: Science, Communicating in science, Planet Earth Keywords: Earth systems, rock layers, fossils Description of task: Students use diagrams of rock layers to answer questions concerning geological history, oldest layer, and to account for the presence of fossils. Curriculum Links: Science capabilities The capabilities focus is brought about by the conversations you have and the questions you ask. Capability: Interpret representations Scientists represent their ideas in a variety of ways, including models, graphs, charts, diagrams and written texts. This resource provides opportunities to discuss the conventions of rock layer diagrams and how tto read them. Science capability: Interpret representations (TKI) Capability: Use evidence This resource provides opportunities to discuss the reasoning skills involved in selecting relevant data to provide evidence. Science capability: Use evidence (TKI) Science capabilities: Interpret representations, Use evidence Making Better Sense: Landforms and Features Answers/responses: Y7 (03/1997) Y8 (03/1997) a) B difficult difficult b) i) ii) Mudstone. The gravel layer does not have the shape of the other layers. easy very difficult easy very difficult c) Susan; The rock layers contain fossils which indicate that the rock must have been laid down under water. difficult easy Land changes over time Road bank Landforms Rock layers Fault line Rocks in our area
