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| measure pH by vegetable concoction |
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| Cloud in a bottle |
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| Density rainbow |
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| Putting boiled egg in bottle |
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| Drawing on milk |
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| Secret Messages by Invisible ink |
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| Create your own Milky Glue |
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| Make your own Yummy Rocky Candy |
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| Stalactites and stalagmites outside caves |
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| Micro volcano |
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