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Sodium silicate solution (water glass) will precipitate coloured metal silicates that appear to grow like underwater plants.
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How to, simply, safely and dramatically, grow crystals as part of helping students appreciate and understand ionic structures.
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Preparing salts is a common activity at GCSE level, bringing together many useful skills. Making copper sulfate crystals (PP027), which involves making copper(II) sulfate from copper(II) oxide, is the..
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Many post-16 chemistry curricula include testing for organic functional groups. Phenol crystals are tricky to work with, so provide students an opportunity to develop their manual handling and observa..
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A quick and safe method for preparing hydrated copper sulfate crystals from copper(II) oxide and sulfuric acid. The activity involves important techniques such as heating with a water bath, filtration..
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Guidance on how to prepare the stains needed for gram staining - to distinguish between Gram-positive and Gram-negative bacteria.
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An updated method of staining gram-positive and gram-negative bacteria using basic equipment.
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Brief risk assessment guidance and experimental notes for a range of activities involving lead metal and some lead compounds (including oxides, carbonate, sulfide).
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An invaluable practical guide on how to safely undertake a range of visually and intellectually appealing chemical reactions. Includes alternatives to some traditional activities such as the thermit r..
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This video demonstrates a quick and reliable method to produce copper sulfate crystals in the classroom.
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Showing results 1 to 10 of 115
