Nov 22-LAB! (Identifying Solids)

Outcome: CH30MS2 Investigate how the properties of materials are dependent on their underlying intermolecular and intramolecular forces.[SI]


c. Recognize that a material’s chemical and physical properties are dependent on the type of bonds and the forces between atoms, molecules or ions. (K)

d. Identify and describe some properties (e.g., melting point, solubility, thermal conductivity, electrical conductivity, hardness, heat capacity, tensile strength, surface tension, reactivity with acids and bases, flammability, flame tests and odour) of ionic and molecular compounds, metals and network covalent substances. (S)

e. Design and carry out a procedure to compare several physical and chemical properties of various materials (e.g., sugar, salt, sand, paradichlorobenzene [mothballs], paraffin and beeswax). (S, STSE, A)

f. Construct a classification system of student‐tested materials according to one or more properties. (S, STSE, A)

g. Determine which intramolecular force is dominant in a student‐tested material, based on test results and knowledge of interamolecular forces. (K, S)

h. Place new substances into a student‐constructed classification system based on their properties. (S, A)

Documents: Identifying Solids Lab Student


Today we did our materials science lab. We looked at properties of 6 unknown substances to determine the types of intramolecular forces present.

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