The liquid range for common substances

The liquid range for common substances

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Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about temperature and changes of state: at what temperatures a substance is liquid.

Temperature range that substances are in a liquid state 

graph showing the temperature range that substances are in a liquid state  

Each bar shows the range of temperatures in which the substance is a liquid. Use this table to answer these questions.

Question

 a)  Which substance has the highest melting point?

    • water

    • salt

    • iron

    • aluminium

Question

 b)  Which substance boils at 1400°C?

    • water

    • salt

    • iron

    • aluminium

Question

 c)  Which substance is a liquid over the greatest temperature range?

    • water

    • salt

    • iron

    • aluminium

Question

 d)  Which substance(s) would be liquid at 1600°C?

    • water

    • salt

    • iron

    • aluminium

Question

 e)  In which state is salt, at 1800°C?

    • solid

    • gas

    • liquid

Task administration: 
This task can be completed with pencil and paper and online with auto-marking.
Level:
5
Curriculum info: 
Science, Investigating in science, Material World
Keywords: 
changes, changes of state, temperature, table interpretation, boiling point
Description of task: 
The liquid range for four common substances has been provided. Students use this to answer questions about melting point, boiling point, and state.
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 complex information can be represented in tables.
Science capabilities: 
Interpret representations
Answers/responses: 
   Y10 (05/1999)
a) iron very easy
b) salt very easy
c) iron easy
d) aluminium and iron moderate
e) gas very difficult