Fresh water from sea water 0 Overview Using this Resource Connecting to the Curriculum Marking Student Responses Further Resources This task is about changes in state of water. Question 1Change answer This apparatus was set up to separate and collect fresh water from sea water. There are three changes of state (e.g., solid liquid) occurring in this diagram. What are these changes, and where are they occurring? This apparatus was set up to separate and collect fresh water from sea water. There are three changes of state (e.g., solid liquid) occurring in this diagram. What are these changes, and where are they occurring? Change of state Where the change is occurring i) ii) iii) Task administration: This task can be completed with pencil and paper or online. Level: 5 Curriculum info: Science, Communicating in science, Material World Keywords: changes, changes of state, water Description of task: Students identify the changes of state that are occurring in a diagram showing the separation of fresh water from seawater. 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 the evidence provided in a diagram that can be used to make inferences. Science capability: Interpret representations (TKI) Science capabilities: Interpret representations Answers/responses: Y10 (05/1999) Any order: liquid gas in the conical flask gas liquid (in the tube) inside the wet paper towel solid liquid in the beaker [NOTE: Accept name of change, e.g., liquid gas/evaporation]. 3 correct – very difficult 2 correct – moderate 1 correct – easy Particle nature of matter Freezing and melting points The liquid range for common substances What is happening II?
gas in the conical flask