| Subject:
Primary Science
Year: 6
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| Strand 3: Natural and Processed Materials
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Substrand: "6.5 Chemical and physical change"
(30 periods)
The properties and uses of materials are related to their structure. The properties of materials – hardness, flexibility, solubility, strength – determine the uses to which they are put. Differences in properties explain the behavior of materials e.g. why liquid water flows, why rubber bands stretch, pottery pieces break, balloon full of air float in water. Some materials can have their properties changed by heating.
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| General Learning Outcomes | Specific Learning Outcomes | Suggested Assessment Events |
Learner's should:
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Learner's should:
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Learner's should:
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6.5.1 understand that different materials have a number of properties, e.g. hardness of stone, softness of flour, texture of fabrics (u)
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6.5.1.1 list the properties of a number of man made and natural materials found locally
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6.5.2 understand that different materials are chosen to make things because of their properties (u)
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6.5.2.1 identify the materials used to make a number of different things and explain why those materials were chosen
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6.5.3 know that heat can cause permanent changes in materials (k)
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6.5.3.1 conduct an activity that causes permanent change to a material using heat e.g. burning wood
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6.5.4 know that natural causes bring about changes in materials (k)
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6.5.4.1 identify rusting iron sheets as an example of chemical change
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6.5.5 know that everyday processes such as mixing concretes, heating clay, burning fuel, and cooking involve chemical changes that cannot be reversed (k)
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6.5.5.1 give an example of a local material changing its properties. E.g. potting clay becoming hard when heated
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6.5.6 know that physical changes can be reversed but chemical changes cannot (k)
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6.5.6.1 identify a range of chemical and physical changes and explain how they are different
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