P066 - Making bath bombs
![Teaching Ideas Teaching Ideas](/images/ideas.png)
An activity where children observe a non-reversible reactions leading to a change of a material.
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![children pressing bath bomb](/dbImages/Thumbnail/patting-bath-bomb.jpg)
P080 - Fire writing
![Teaching Ideas Teaching Ideas](/images/ideas.png)
A practical activity where children write and reveal hidden messages using food and fire.
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![Boys revealing hidden message](/dbImages/Thumbnail/Revealilng-writing.jpg)
P057 - Vinegar and bicarbonate fire extinguisher demonstration
![Teaching Ideas Teaching Ideas](/images/ideas.png)
A teacher demonstration about density, floating and sinking that uses carbon dixoide gas and air, rather than solids and liquids.
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![jug and canle](/dbImages/Thumbnail/flaming-going-out.jpg)
P018 - Investigating burning
![Doing Things Safely Doing Things Safely](/images/safety.png)
![Teaching Ideas Teaching Ideas](/images/ideas.png)
An activity where childrenĀ burn small samples and observe what happens when they are put directly into a naked flame.
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![Investigating burning using tealights](/dbImages/Thumbnail/Melting-sweets.jpg)