All Separation articles – Page 4
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ResourceWorld War II: science ideas webs
A web of suggested ideas for linking science with the topic World War II. You can learn history and science together with activities for different age groups.
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ResourceNa Lochlannaich: lìontan nam beachdan saidheans
Lìon nam beachdan mollaichte airson ceangal a dhèanamh eadar saidheans agus an cuspair na Lochlannaich. Faodaidh tu eachdraidh agus saidheans ionnsachadh còmhla le gnìomhachasan airson buidhnean de dh’aoisean diofraichte
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ResourceAn Dàrna Cogadh: lìontan nam beachdan saidheans
Lìon nam beachdan mollaichte airson ceangal a dhèanamh eadar saidheans agus cuspair An Dàrna Cogadh. Faodaidh tu eachdraidh agus saidheans ionnsachadh còmhla le gnìomhachasan airson buidhnean de dh’aoisean diofraichte
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ResourceManufacturing sodium carbonate by the Solvay process
An account of the Solvay process. This resource is part of the ‘Sodium carbonate – a versatile material’ resources collection, which presents learning material based on the manufacture and uses of sodium carbonate made by the Solvay (ammonia-soda) process.
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ExperimentColourimetric determination of copper ore
Use this practical to introduce students to the determination of copper ore by colourimetry using copper(II) sulfate. Includes kit list and safety instructions.
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ExperimentPurifying an impure solid
Purify alum as an example of obtaining a pure chemical from an impure sample in this class practical. Includes kit list and safety instructions.
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ExperimentLeaf chromatography
Try this class practical to use paper chromatography to separate and investigate the pigments in a leaf. Includes kit list and safety instructions.
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ResourceThe isolation of the platinum group metals │16–18 years
A comprehension exercise on the solvent extraction of platinum, supported by a demonstration of the partition of iodine between two solvents
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ExperimentDissolved substances in tap water and seawater
Compare the solids and gases dissolved in tap water and seawater in this class practical and demonstration. Includes kit list and safety instructions.
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ExperimentPreparing an insoluble salt in a precipitation reaction
Produce an insoluble salt precipitate by reacting two soluble metal salts together in this class experiment. Includes kit list and safety instructions.
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ExperimentRecovering water from a solution using a condenser
Use this demonstration to show how pure water can be recovered from copper sulfate solution using a condenser. Includes kit list and safety instructions.
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ExperimentCarbon filtration and activated charcoal
Try this practical to remove objectionable tastes and odours from water using carbon in the form of activated charcoal. Includes kit list and safety instructions.
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ExperimentSeparating salts from seawater
Try this simple practical to show that seawater contains a mixture of different salts. Includes kit list and safety instructions.
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ExperimentExtracting copper from copper(II) carbonate
Use this practical to produce copper from copper(II) carbonate, modelling the extraction of copper from malachite. Includes kit list and safety instructions.
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ExperimentWhat are the dissolved solids in seawater?
Analyse the salts that crystallise from evaporating seawater, illustrating cation and anion tests in this demonstration. Includes kit list and safety instructions.
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ExperimentRecovering water from copper(II) sulfate solution
Try this practical to introduce students to aqueous solutions by distilling water from copper(II) sulfate solution. Includes kit list and safety instructions.
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ExperimentChromatography of sweets | 11–14 years
Try this class practical to carry out chromatography using dye from different coloured M&M’s®. Includes kit list and safety instructions.
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ExperimentSilver and lead halides
Try this practical or demonstration to produce silver and lead halides in a series of precipitation reactions. Includes kit list and safety instructions.
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ExperimentExtracting iodine from seaweed
Discover how ribbon seaweed (or kelp) can be used as a source of iodine in this demonstration or class experiment. Includes kit list and safety instructions.
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ExperimentThe fractional distillation of crude oil
Try this class practical or demonstration to simulate the industrial fractional distillation of crude oil. Includes kit list and safety instructions.