Physical Changes. Science State Board, Class 7: lessons, tests, tasks.

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1.	Introduction to changes around us
2.	Effect of heat on solid, liquid and gases
3.	Characteristics of a physical change
4.	Melting
5.	Vapourisation and Evaporation
6.	Freezing and Condensation
7.	Sublimation and Crystallization
8.	Changes of state

1.	Changes around us Difficulty: easy	2
2.	Sublimation and crystallistion Difficulty: easy	2
3.	Match the words about 'changes around us' Difficulty: easy	2
4.	Endothermic process Difficulty: easy	2
5.	Freezing and condensation Difficulty: medium	4
6.	Melting and vapourisation Difficulty: medium	4
7.	States of matter Difficulty: medium	4
8.	Sublimation and crystallisation Difficulty: medium	4
9.	Temporary changes Difficulty: medium	4
10.	Physical change Difficulty: medium	4
11.	Types of changes and its examples Difficulty: hard	12
12.	Effect of heat on states of matter Difficulty: hard	4
13.	Analyse the statements about reversible changes Difficulty: hard	6

1.	Training Test Difficulty: medium	6
2.	Training Test- II Difficulty: medium	12

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Methodical recommendation

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