Reversible and Irreversible Changes
http://www.bbc.co.uk/schools/scienceclips/ages/10_11/rev_irrev_changes.shtml
Reversible and Irreversible Changes : BBC Multimedia Science
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Hot and Cold
http://www.digitalbrain.com/digitalbrain/public/subjects/1.%20primary/ks2sci/su3/mod3/
Hot and Cold
Heat is a form of energy; we measure how hot something is using a thermometer. We take its temperature
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Reversible and Irreversible Changes - 4learning
http://www.channel4.com/science/
There are many ways of changing materials. You can melt some, freeze some, dissolve some and even burn some. Some of these changes can be reversed - you can get back what you started with. But some are irreversible. They are permanent. You can never get back what you started with. You have a completely new material.
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This is the Reversible and Irreversible Changes (6d) link area
/pages/learning/ScienceP/RevIrrev/
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Reversible and irreversible changes (6d)
http://www.standards.dfes.gov.uk/schemes2/science/sci6d/?view=get
Reversible and irreversible changes (short unit) This unit brings together and consolidates work that children have done before on reversible changes eg melting, freezing, evaporating, dissolving, condensing, introduces burning as a change that cannot be reversed and, like other irreversible changes, produces new materials. Experimental and investigative work focuses on: -making careful observations -suggesting explanations for observations, using scientific knowledge and understanding. Work in this unit also offers opportunities for using scientific knowledge and understanding to explain and interpret a range of everyday changes. This unit takes approximately 6 hours.
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