Grouping substances

Grouping substances

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This task is about grouping substances into different categories.

Question Change answer

a)  Group these substances into solids, liquids, and gases.
Copper sulfate crystals
air
carbon dioxide
Petrol
zinc
oxygen
Solids
Liquids
Gases

Question Change answer

A compound is a substance that contains atoms of two or more elements joined together and cannot be easily separated.
A mixture is a substance composed of two or more forms of matter that can be easily separated.
An element is a pure substance composed of one type of atom.
 
b)  i)  Now group these substances into elements, mixtures, and compounds.
copper sulfate crystals
carbon dioxide
oxygen
air
zinc
petrol
Elements
Mixtures
Compounds

Question 1Change answer

     ii) Name the substance which is a
 
          Solid element:  aircarbon dioxidecopper sulfate crystalsoxygenpetrolzinc  (Select one)
          Gaseous mixture: aircarbon dioxidecopper sulfate crystalsoxygenpetrolzinc  (Select one)
Task administration: 
This task can be completed with pencil and paper or online (with auto marking displayed to students).
Level:
5
Curriculum info: 
Science, Knowledge, Material World
Keywords: 
properties, states of matter, elements, mixtures, compounds
Description of task: 
Students classify six common substances as either a solid, liquid, or a gas. Students then group these substances into elements, mixtures, or compounds.
Answers/responses: 
  

Y10 (05/1999)
a) Solids
copper sulfate crystals
zinc
Liquids
petrol
Gases
air
carbon dioxide
oxygen		 3 correct – very easy
2 correct – very easy
1 correct – very easy
b) i) Elements
oxygen
zinc
Mixtures
air
petrol
Compounds
carbon dioxide
copper sulfate crystals		 3 correct – difficult
2 correct – moderate
1 correct – very easy
ii) Zinc
Air		 easy
difficult