The liquid range for common substances

The liquid range for common substances

Pencil and paper
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.

a) Which substance has the highest melting point?

 
 
 
b) Which substance boils at 1400°C?

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

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

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

 
 
Task administration: 
This task can be completed with pencil and paper.
Level:
5
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 different ways of representing data and reading and interpreting these different representations.
 
Science capabilities: 
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