A glittering occasion

A glittering occasion

Pencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
This task is about identifying and explaining convection currents.
A glass beaker is filled with water and some glitter is dropped into it.
The movement of the glitter shows how liquid moves when it is heated.
 
Fill in the gaps to show how the water is moving at each number on the diagram.
Explain why the water is moving like this.  

Question 2Change answer

a)  i) At number 1 the water is moving 
 
   ii) The water is moving like this because 
        

Question 1Change answer

b)  i) At number 2 the water is moving 
 
   ii) The water is moving like this because 
        
Task administration: 
This task can be completed with pencil and paper or online (with NO automarking).
Level:
4
Curriculum info: 
Science, Communicating in science, Physical World
Keywords: 
physics concepts, energy, convection
Description of task: 
Task: Identify direction of currents and explain reason for pattern. Assessment focus: convection patterns.
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 conventions of diagrams and how they clarify the meaning for the reader.
  • the meaning conveyed by arrows in specific science diagrams.
 
Science capabilities: 
Interpret representations
Answers/responses: 
      Y8 (11/1998)
a) i)
ii)		 Rising/going up.
It is heated/the temperature has increased.		 very easy
moderate
b) i)
ii)		 Falling/going down.
It is cooling/the temperature is dropping/the water is being displaced by rising water.		 easy
difficult