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Find Out About Mixing Substances

In this worksheet, students will be given a variety of scenarios in which substances are mixed together, and asked whether or not the effects of such mixing causes a permanent change.

'Find Out About Mixing Substances' worksheet

Key stage:  KS 2

Year:  Year 5 Science worksheets

Curriculum topic:   Properties and Changes of Materials

Curriculum subtopic:   Dissolving and Solutions

Difficulty level:  

Worksheet Overview

Barney and Tim are finding out what happens when certain substances are mixed together.


They are interested in observing any changes and trying to find out whether the change is permanent (irreversible) or temporary (reversible).




They start by drawing up a chart to write their results in:


Sand Water Did not dissolve Reversible
Salt Water   Reversible
Sugar Water Dissolved - clear  
Instant coffee Water Dissolved - brown Irreversible
Andrews salts Water Fizzed - gas produced Irreversible
Hot chocolate powder Water Did not dissolve Reversible
Bicarbonate of soda Vinegar Fizzed - gas produced Irreversible
Boiled sweet Water Dissolved - pink Reversible
Dirty 2p coin Lemon juice Coin clean/juice dirty Irreversible


Now that they have completed their chart, they need your help in sorting out their observations - are you up for that?

Remember that you can look back at this chart again by clicking on the red help button on the screen at any point.


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