All Practical skills and safety articles – Page 17
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The MoleChemical waste
In the school lab, the chemicals you deal with are easily disposable but what about back in the technician’s store?
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FeatureTwo-step bromine attack
An experiment for the classroom to show that bromine adds to an alkene by two-step electrophilic addition
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Exhibition chemistrySoap from bacon - the dangers of alkaline solutions
Demonstrations designed to capture the student's imagination
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FeatureInvestigations get real
What real chemists do can be the basis of motivating investigations and learning in school chemistry
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FeatureGood lab practice
Students who want to work as analytical chemists in industry need to be introduced to the basic regulatory requirements of 'good laboratory practice'
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Lesson planHow does burning magnesium affect its mass? | 11-14 years
Investigate what happens to the mass of magnesium when it burns and reacts with oxygen using this lesson plan and practical activity for 11–14 year olds.
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Lesson planInvestigating the composition of limestone | 11-14 years
Use this lesson plan for 11–14 year olds to help your students plan, implement and evaluate a practical investigation to determine if all limestone is the same.
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Lesson planMeasuring vitamin C in fruit using titration | 14-16 years
Compare the amount of vitamin C in fruit and juices using titration, and explore conditions affecting vitamin C levels, in this lesson plan for 14–16 year olds.
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Lesson planAccuracy and precision in practical investigations | 14-16 years
Help your students consolidate their understanding of the difference between accuracy and precision using this lesson plan with activities for 14–16 year olds.
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FeatureBuild your own spectrophotometer
By designing and building their own visible-light spectrophotometers, students get to grips with the underlying principles of this widely used analytical tool
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FeatureInvestigating activation energies
A challenge for post-16 students to investigate the activation energies of the enzyme-catalysed and the inorganic-catalysed decomposition of hydrogen peroxide