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RB105 - Winkler's method for dissolved oxygen
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Guidance on how to prepare and use of the required solutions for the determination of the dissolved oxygen content of water samples using Winkler's method. The procedure described avoids the use of so.. more
words matched: sampling, water
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Handbook - Section 17 - Fieldwork
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Gives guidance on general fieldwork including specific measurements and techniques. Detailed guidance is included on measuring substances in the soil, water and air, and electronic measurements such a.. more
words matched: sampling, water
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SRA037 - Investigating the properties of gallium metal
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The low melting point of gallium metal is demonstrated, eg by using warm water to melt a sample or by making it into a spoon shape and showing that it melts when used to stir a cup of tea.
words matched: sampling, water
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GL429 - Managing effective fieldwork
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This document outlines the key points needed when planning to carry out fieldwork and sampling.
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GL451 - Sampling and identifying terrestrial invertebrates
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This guide outlines methods for sampling and observing invertebrates in ecology. Methods are given for both on and off the school grounds.
words matched: sampling, water
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PP133 – Transition activity: Exploring colour changes
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During this challenge-based activity visiting children learn to follow a written method and pipette dropwise without contaminating samples.
words matched: sampling, water
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PP111 - Small-scale preparation, collection and testing of hydrogen gas
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Testing for common gases is included in most chemistry courses. In this procedure students make their own sample of hydrogen gas to test.
words matched: sampling, water
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Bulletin 116 - Spring 2003
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This edition includes notes on a serious accident which happened to an inexperienced teacher, exploding spirit burners, drinking bottled water in science lessons, and an  accident during an open eveni.. more
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HC018 - Calcium oxide, calcium and strontium hydroxides
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Risk assessment guidance for calcium oxide (quicklime), calcium hydroxide (slaked lime) and strontium hydroxide-­‐8-­‐water (hydrated strontium hydroxide).
words matched: sampling, water
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R142 - Equipment and Materials for Environmental Monitoring
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Explains what is meant by environmental monitoring, and the range of equipment available. Describes in detail each of the parameters which can be monitored including possible difficulties. Also descri.. more
words matched: sampling, water
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