15 & 16 Properties and Uses of Substances

PropertiesofSubstancesLevel 3

SCN 3-15a

I have developed my knowledge of the Periodic Table by considering the properties and uses of a variety of elements relative to their positions.

Copper amino complexes (workshop) - A simple version of a more advanced experiment to easily prepare 2 different isomers of gopper/glycine complexes.

SCN 3-15b

Having contributed to a variety of practical activities to make and break down compounds, I can describe examples of how the properties of compounds are different from their constituent elements.

Electrolysis of lead bromide - microscale - a small scale version of the classic experiment that does not need to be carried out in a fume cupboard.

Iron-sulphur - microscale - a small scale version of the classic experiment that reduces the production of toxic gases. The iron is reacted with sulphur and the properties of the resulting sulphides are investigated.

 

SCN 3-16a

I can differentiate between pure substances and mixtures in common use and can select appropriate physical methods for separating mixtures into their components.

Flash Chromatography (workshop) - Flash chromatography carried out in a syringe - using talc (or cornflour) - can be used to separate samples of food dyes or plant pigments.

Concrete chemistry (workshop) - A series of activities looking at cement and concrete. (Looking more at impotance and properties of mixtures than their separation)

Liquid Crystasl (workshop) - Making liquid crystals of different compositions and investigating the effect of temperature on their colour changes. (Looking more at impotance and properties of mixtures than their separation)

Shampoo (workshop) - Activity to make shampoo, involving steam distillation to extract natural essences.

Electrolysis of lead bromide - microscale - a small scale version of the classic experiment that does not need to be carried out in a fume cupboard.

SCN 3-16b

I have taken part in practical investigations into solubility using different solvents and can apply what I have learned to solve everyday practical problems.

Level 4

SCN 4-15a

Through gaining an understanding of the structure of atoms and how they join, I can begin to connect the properties of substances with their possible structures.

SCN 4-16a

I have carried out research into novel materials and can begin to explain the scientific basis of their properties and discuss the possible impacts they may have on society.

Smart Materials (workshop) - Some short activities looking at the properties of commercially available smart/novel chemical materials.

SCN 4-16b

Through evaluation of experimental results, I can demonstrate my understanding of conservation of mass.

Formula of magnesium oxide - microscale - a small scale version of the experiment to determine the mass of oxygen added to burning magnesium and hence work out its formula.

 

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