Melting and boiling points

Melting and boiling points

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This task is about melting and boiling points of substances.
Use this table to answer the questions below.
Substance Melting Point °C Boiling Point °C
Aluminium 660 1800
Iron 1535 2750
Nitrogen – 210 – 196
Oxygen – 218 – 183
Sodium chloride 804 1413
Water 0 100

Question 1Change answer

a)  What is the melting point of iron?  °C

Question 1Change answer

b)  At what temperature does water turn from a liquid to a gas?  °C

Question

 c)  At 680°C, is sodium chloride a solid, liquid, or gas?

    • solid

    • liquid

    • gas

Question

 d)  Which substance remains liquid over the greatest temperature range?

    • Aluminium

    • Iron

    • Nitrogen

    • Oxygen

    • Sodium chloride

    • Water

Question

 e)  Choose the substances which are liquid at 1000°C.

    • Aluminium

    • Iron

    • Nitrogen

    • Oxygen

    • Sodium chloride

    • Water

Question

 f)  If a mixture of oxygen and nitrogen was cooled, which one would freeze first?

    • Oxygen

    • Nitrogen

Question 6Change answer

g)  At what temperature does aluminium freeze?  °C

Question

h)  At room temperature:
i)  which substance(s) would be in a solid state?

    • Aluminium

    • Iron

    • Nitrogen

    • Oxygen

    • Sodium chloride

    • Water

Question

ii)  which substance(s) would be in a liquid state?

    • Aluminium

    • Iron

    • Nitrogen

    • Oxygen

    • Sodium chloride

    • Water

Question

iii)  which substance(s) would be in a gas state?

    • Aluminium

    • Iron

    • Nitrogen

    • Oxygen

    • Sodium chloride

    • Water

Task administration: 
This task can be completed with pencil and paper or online (with auto marking).
Level:
5
Curriculum info: 
Science, Investigating in science, Material World
Keywords: 
changes, states of matter, solid, liquid, gas, table interpretation, boiling point
Description of task: 
Students use a table of information on melting points and boiling points of six different substances to answer questions about states of matter.
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 tables represent data. 
Science capabilities: 
Interpret representations
Answers/responses: 
   Y10 (05/1999)
a)
b)		 1535
100		 very easy
c) Solid easy
d) Iron easy
e) Aluminium, Sodium chloride difficult
f) Nitrogen easy
g) 660 moderate
h)
i)   Aluminium, Iron, Sodium chloride
ii)  Water
iii) Nitrogen and Oxygen
 moderate