All Ions articles
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NewsThe whitest white paint ever is also the coolest
How paint made with barium sulfate could reduce the need for air conditioning
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News
Diamond helps to discover hexagonal salt
Explore ionic structures in your class with the discovery of a strange form of table salt
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Ideas
5 ways to explain electrolysis
From building good foundations to memorising the rules, these tips will help your students grasp this tricky topic
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News
A step closer to post-lithium energy storage
Calcium batteries could be viable thanks to a new electrolyte
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Experiment
Precipitation reactions of lead nitrate
Compare the colours of various lead compounds to identify which would be good pigments in this microscale practical. Includes kit list and safety instructions.
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Resource
Using a microscale conductivity meter
Let your students test which solids and solutions/liquids conduct electricity with a microscale conductivity meter
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Resource
Electrolysis of potassium iodide solution
Filter paper soaked in potassium iodide solution which also contains starch and phenolphthalein is placed on an aluminium sheet which forms one electrode of an electric circuit. The other electrode is used as a ‘pen nib’ to ‘write’ on the filter paper. When this electrode is made positive and the ...
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Resource
Challenging Plants: Soil Science - Practicals
The nature of soil particles (inorganic and organic) and of soil water affects plant growth and, in particular, the availability of nutrients essential for the growth of quality crops in high yield. An understanding of the media in which plants grow helps scientists to exploit their potential.
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Resource
Ionic bonding
This resource is designed to provide strategies for dealing with some of the misconceptions that students have in the form of ready-to-use classroom resources.
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Resource
The salt cellar mystery
Introducing the world of forensic science; gathering chemical and fingerprint evidence to solve a crime.
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Resource
The life raft
Evaluate the advantages and disadvantages of a selection of resins and decide which one(s) would be best for producing pure water from sea water on a life raft.
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Resource
Jets of liquids
Investigate what happens when different charged plastics are held near a jet of water issuing from a burette, and explain your observations.
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Resource
What compound?
Identify a given solid; make a list of all of the compounds the solid could be, suggest as many ways as possible of identifying the solid and use this information to devise an analytical procedure; use this procedure to identify the solid.
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Resource
Detergency
Explain two observations related to the production of a jelly-like solid when two detergents were used in combination.
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Experiment
Investigating the solubility of lead halides
Encourage students to make and test predictions about the pattern of solubility among lead halides in this practical. Includes kit list and safety instructions.
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Experiment
Solubility trends of metal halides
Investigate patterns in the solubility of halides of silver and some Group 1 and 2 metals in this microscale practical. Includes kit list and safety instructions.
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Experiment
What ions cause hardness in water?
Investigate how different cations and anions in dissolved salts affect the formation of a lather in this experiment. Includes kit list and safety instructions.
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Experiment
What 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.
