Showing 10 results
In this Crest Award accredited project, students monitor levels of atmospheric sulfur dioxide and rainfall acidity in the school grounds. Suggested investigations include:
- Investigate various methods of measuring acidities between pH4 and pH7, to decide which method is most accurate.
- Compare...
In this project students will research ways of detecting low concentrations of lead and apply these to test samples from the environment. The objective is to investigate whether lead from petrol still persists at the roadside in order to determine whether there is a lurking legacy of lead.
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This project encourages students to make contact with a business that performs quality control analyses, such as a public analyst who tests samples for the Trading Standards Department. Students will need to carry out both quantitative and qualitative analysis on tablets with a single active ingredient, such as...
In this project, students make their own aspirin or paracetamol and then test the purity of the pain-reliever and compare it to shop-bought. This covers titrations, chromatography and other analytical techniques.
The aim of this project is to investigate the properties of alcohol/water mixtures, and how these properties can be used to measure alcohol content. The alcohol in drinks is ethanol, C2H5OH. However, the ethanol used in the laboratory has been methylated by adding 5% of methanol, CH3...
In this investigation, students extract iron from a breakfast cereal and consider how our bodies are able to digest iron by looking at its reactions with hydrochloric acid.
This worksheet looks at electrolysis, its use in the extraction of sodium and aluminum and in the purification of copper. Having completed it, students are then asked to set up a simple electrolytic cell to obtain pure copper and calculate and measure the amount of product deposited at an electrode during...
This A2 level Applied Science resource guides students to research, select and use quantitative chemical analysis techniques to assay the active ingredient of common medicines. There are suggested methods to select from, questions and guided steps for calculations involved. The resource also contains student sheets...
Students research, and then try out, ways of detecting analgesic compounds in mixtures:
• Chemical tests for particular organic functional groups.
• Paper and/or thin-layer chromatography to separate and identify analgesic...
In this project students use chromatography to detect forged cheques and other documents and various types of counterfeit goods. They will also investigate the best solvents to extract the inks and run TLC plates in order to compare the inks from the same part of a document printed on different models of a printer...