home *** CD-ROM | disk | FTP | other *** search
- %OP%IRY
- %CO:A,12,72%Attainment target 6 Types and uses of materials
-
- Pupils should develop their knowledge and understanding of the
- properties of materials and the way properties of materials determine
- their uses and form the basis for their classification.
-
- Level 1 * be able to describe familiar and unfamiliar objects in terms
- of simple properties, for example, shape, colour, texture,
- and describe how they behave when they are, for example,
- squashed and stretched.
-
- Level 2 * be able to recognise important similarities and differences,
- including hardness, flexibility and transparency, in the
- characteristics of materials.
-
- * be able to group materials according to their
- characteristics.
-
- * know that heating and cooling materials can cause them to
- melt or solidify or change permanently.
-
- Level 3 * know that some materials occur naturally while many are made
- from raw materials.
-
- * be able to list the similarities and differences in a
- variety of everyday materials.
-
- Level 4 * be able to make comparisons between materials on the basis
- of simple properties, strength, hardness, flexibility and
- solubility.
-
- * be able to relate knowledge of these properties to the
- everyday use of materials.
-
- * know that solids and liquids have 'weight' which can be
- measured and also occupy a definite volume which can be
- measured.
-
- * understand the sequence of changes of state that results
- from heating or cooling.
-
- * be able to classify materials into solids liquids and gases
- on the basis of their properties.
-
- Level 5 * know that gases have weight.
-
- * be able to classify aqueous solutions as acid alkaline or
- neutral by using indicators.
-
- * be able to give an account of the various techniques for
- separating and purifying mixtures.
-
- Level 6 * understand the meaning of the following properties of
- materials: strength, hardness, elasticity, solubility,
- density, melting point, electrical and thermal conductivity.
-
- * be able to describe the difference between mixtures and pure
- compounds.
-
- * be able to interpret data and observations in distinguishing
- between elements (metallic and non-metallic) and their
- mixtures and compounds, according to their properties.
-
- * be able to make predictions from the reactivity series of
- metals.
-
- * know that volume of a gas depends on pressure and
- temperature.
-
- Level 7 * be able to distinguish between the main classes of materials
- (metals, ceramics, glass, plastics and fibres) in terms of
- their properties.
-
- * be able to relate knowledge of these properties to everyday
- use of materials.
-
- * know that the periodic table groups together elements with
- similar properties.
-
- Level 8 * understand the relationship between the volume of a gas and
- its pressure and temperature in quantatative terms.
-
- * be able to describe the important chemical properties of
- metals and non-metals through a range of their compounds.
-
- Level 9 * be able to describe simple trends in properties of a group
- of metals and non-metals, within the periodic table, and
- relate these to their electronic structure.
-
- * be able to collect and use quantitative measurements of
- properties of materials, including cost, to make judgements
- about the use of different materials.
-
- Level 10 * understand the construction of the periodic table in terms
- of atomic structure for important elements.
-
- * understand the limitations of systems of classification.
-
- * be able to evaluate the relative advantages of composite
- materials.
-
- * be able to use scientific knowledge and information from a
- range of sources to evaluate the social, economic, health
- and safety and environmental factors associated with
- manufacturing a metal or a ceramic or a plastic or a fibre.
- %CO:B,12,60%%CO:C,12,48%%CO:D,12,36%%CO:E,12,24%%CO:F,12,12%