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Know how some materials change state

In this worksheet, students will consider what happens when materials are changed by varying the temperature and the effects upon the material itself.

'Know how some materials change state' worksheet

Key stage:  KS 2

Curriculum topic:   States of Matter

Curriculum subtopic:   Heating and Cooling

Difficulty level:  

Worksheet Overview

Many of the different materials you use day in, day out, can be changed by a change in the temperature. What will happen to them?

 

Sometimes they melt, sometimes they boil, sometimes they turn solid, sometimes they catch fire.

 

You already know, from your experiences in life and from your science lessons, that some solids melt when heated, while others are not affected by heat. 

 

melting chocolate

 

Some liquids boil when heated and turn to vapour.

 

kettle boiling

 

Similarly, when liquids are cooled down, some turn solid (in a process called 'freezing') and, amazingly, you can cool some gases down enough to turn them back into liquids (that's called 'condensing').

 

condensation

 

In this worksheet think about the materials in the questions, what you have learned about them, and use that information to help you to answer the question.

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