Rock columns 0 Overview Using this Resource Connecting to the Curriculum Marking Student Responses Working with Students Further Resources This task is about erosion and weathering. Question 1Change answer You are travelling through a desert – sand, sand, and more sand. Suddenly there are 2 huge columns of rock ahead. They look like towers with viewing platforms on the top. You are travelling through a desert – sand, sand, and more sand. Suddenly there are 2 huge columns of rock ahead. They look like towers with viewing platforms on the top. a) In the desert, what would cause these rocks to weather? b) Which letter shows the hardest rock in the column? ABCDEFGHIJABCDEFGHIJ c) Which letter shows the softest rock in the column? ABCDEFGHIJABCDEFGHIJ Task administration: This task can be completed with pencil and paper or online. Level: 5 Curriculum info: Science, Communicating in science, Planet Earth Keywords: Earth systems, weathering, erosion Description of task: For this task students are asked to explain the cause of weathering of rocks and to identify the hardest and the softest rock in a column of rock. Curriculum Links: Science capabilities The capabilities focus is brought about by the conversations you have and the questions you ask. Capability: Interpret representations This resource provides opportunities to discuss how different types of rocks weather at different rates. Science capability: Interpret representations (TKI) Science capabilities: Interpret representations Answers/responses: Y9 (03/1997) Y10 (03/1997) a) Sand/wind abrasion/extreme temperature/extreme heat. easy easy b) A difficult difficult c) D moderate moderate Diagnostic and formative information: Common errors, analysis of Y10 answers b) 42% of students chose rock layer J. 24% of students chose rock layer D. c) 43% of students chose rock layer A. From mountain to sea
