All Compounds and mixtures articles – Page 4
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ResourceSalt: primary science podcasts
Join Kareena and her superhero friend K-mistry for this short podcast introducing children to dissolving.
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ResourceSolids, liquids and gases: That’s Chemistry!
The ‘solids, liquids and gases’ chapter from That’s Chemistry! This chapter looks at key ideas and activities that can be used to help students learn about solids, liquids and gases, and understand that some materials change state when they are heated or cooled.
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ResourceSeparating mixtures: That’s Chemistry!
The ‘separating mixtures’ chapter from That’s Chemistry! This chapter looks at key ideas and activities that can be used to help students learn how sieving can separate particles of different sizes and other methods used for separating mixtures.
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ResourceIrreversible changes: That’s Chemistry!
The ‘irreversible changes- chemical reactions’ chapter from That’s Chemistry! This chapter looks at key ideas and activities that can be used to help students learn how non-reversible changes result in the formation of new materials.
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ResourceMixing and dissolving materials: That’s Chemistry!
The ‘mixing and dissolving materials’ chapter from That’s Chemistry! This chapter looks at key ideas and activities that can be used to help students learn that mixtures are made up of more than one substance and that some mixtures can be separated.
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ResourceHeating and cooling materials: That’s Chemistry!
The ‘heating and cooling materials’ chapter from That’s Chemistry! This chapter looks at key ideas and activities that can be used to help students learn how the properties of some materials change when they are heated, and that some of these changes are irreversible.
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ResourceCracking Chemistry!
Work your way through these fun chemistry practicals developed by National Science & Engineering Week.
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Class experimentSeparating sand and salt by filtering and evaporation
Try this class experiment to practise manipulating mixtures of soluble and insoluble materials by separating sand and salt. Includes kit list and safety instructions.
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ResourceChemistry in your cupboard: Calgon
Link the post-16 topics of group 2 elements, acids and bases and polymerisation to the topic of hardness of water.
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ResourceConcentration simulation
Explore concentration with this interactive simulation. Add different solutes to water and adjust the controls to change their concentration:
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Class experimentIron and sulfur reaction
This demonstration or class experiment shows the exothermic reaction of iron and sulphur. Includes kit list and safety instructions.
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DemonstrationSodium ethanoate ‘stalagmite’
Quickly grow your own ‘stalagmite’ from a supersaturated solution of sodium ethanoate in this demonstration. Includes kit list and safety instructions.
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ResourceMaya and Aztecs: science ideas webs
A web of suggested ideas for linking science with the topic the Maya and Aztecs. You can learn history and science together with activities for different age groups.
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Class 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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Class experimentExothermic redox reaction of zinc with iodine
Using an exothermic redox reaction between zinc and iodine, student will make zinc iodide. This can be reversed using electrolysis to decompose the compound.
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Class experimentDisplacement reactions of non-metals
Investigate a displacement series of non-metals using oxygen and chlorine in this class practical or demonstration. Includes kit list and safety instructions.
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DemonstrationRecovering 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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ResourceMaking concrete
In this experiment, students determine how different sized materials with binder increase the stability and strength of mortar and concrete. Also, students can test how altering the proportions of cement, water and different aggregates affects concrete’s properties.
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Class experimentWhat 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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Class experimentSeparating salts from seawater
Try this simple practical to show that seawater contains a mixture of different salts. Includes kit list and safety instructions.