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- %OP%IRY
- %CO:A,12,72%Attaiment target 8: Explaining how materials behave
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- Pupils should develop their knowledge and understanding of the use of
- models to explain the structure and properties of materials.
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- Level 4 * be able to use their developing ideas about the consitution
- of matter and relate them to everyday examples involving
- changes of state and solubility.
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- Level 5 * know that it is helpful to imagine that everything is made
- up of very small particles called atoms.
-
- Level 6 * be able to explain the difference between solids, liquids
- and gases in terms of proximity and motion of particles.
-
- * know that energy transfers are associated with changes of
- state and with changes within a particular state such as
- expansion.
-
- * be able to construct simple word equations to describe
- reactions.
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- Level 7 * be able to explain changes of state and the energy changes
- associated with them, and also evaporation, diffusion and
- dissolving in terms of simple kinetic theory.
-
- * understand the differences between elements and compounds
- in terms of atoms, ions and molecules using simple examples.
-
- * be able to interpret the symbolic representation of models
- for atoms and molecules in 3-D form and in diagrams.
-
- * know that radioactive substances give out ionising
- radiations, some of which are present naturally as
- background radiation, and that these can be harmful, but
- also have beneficial use.
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- Level 8 * be able to describe the structure of the atom in terms of
- protons, electrons and neutrons.
-
- * be able to describe radioactivity and nuclear fission in
- terms of the atomic model.
-
- * be able to relate the properties of molecular and giant
- structures to the arrangement of atoms and ions.
-
- * be able to use symbolic equations qualitatively to describe
- reactions.
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- Level 9 * be able to interpret chemical equations quantitatively.
-
- * know that there are different types of ionising radiations,
- each with different properties.
-
- * be able to give a coherent account of the properties of
- different types of ionising radiation.
-
- * be able to explain the meaning of half-life.
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- Level 10 * be able to apply the kinetic theory in a range of
- contexts.
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- * be able to explain electrolysis in terms of ionic reactions.
-
- * be able to relate the bulk properties of metals, ceramics,
- glass, plastics and fibres to simple models of their
- structures.
-
- * understand the relationship between the half-life and the
- nature of the radioactive source, in the use of radioactive
- materials.
- %CO:B,12,60%
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- %CO:C,12,48%
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- %CO:D,12,36%
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- %CO:E,12,24%
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- %CO:F,12,12%
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