Medicines for Pets
This publication focuses on the processes involved in developing pet medicines. The context is closely related to the challenges faced by research scientists and manufacturers in the pharmaceutical industry. Activities investigate the extraction and purification of the active ingredient, the formulation of a tablet, the best tablet shape and developing a suitable coating.
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The lifecycle of a pet medicine
Science topic: Topical science
Type of enquiry: Problem solving
Keywords: STEM careers, scientist, using a key, asking questions, manufacturing, scientifically enquiry, medicine, living things, key, card sort, animals
This activity introduces the industrial context by exploring the manufacture of pet medicine from the problem to production of the final product.
Extracting the active ingredient
Science topic: Materials
Type of enquiry: Problem solving
Keywords: Laboratory, scientist, texture, materials, crystals, separate, soluble, insoluble, dissolve, solution, reversible, sieve, filter, heat, evaporate, solid, liquid, gas, water vapour, properties, materials
The children face the challenge of separating crystals of salt from waste materials using dissolving and evaporating techniques.
Mixing the medicine
Science topic: Materials
Type of enquiry: Problem solving
Keywords: Laboratory, scientist, mixing, active ingredient, pharmaceutical industry, properties, materials, reversible, irreversible, enquiry, solid, liquid, reaction, change, measuring
The focus of the session is tablet production. Children grind the active ingredient and combine it with others, before moulding into a range of tablet shapes.
Testing the tablet shape
Science topic: Forces
Type of enquiry: Comparative/fair tests
Keywords: machinery, moulds, tools, fair test, variables, water resistance, repeat tests, reliability, investigate, compare, air resistance, friction, forces, measurement, accuracy, precision, observe, measure, record
The children investigate the effects of a range of tablet shapes on ‘swallowing’ as they compare the speed at which different shapes travel through liquid.
Creating a coating
Science topic: Materials
Type of enquiry: Comparative/fair tests
Keywords: fair test, variables, laboratory, scientist, soluble, insoluble, dissolve, solution, reversible, solid, liquid, gas, coating, mixing, mixture, changes of state, materials, properties
The final activity looks at planning and carrying out a fair test to delay dissolving in the mouth.
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Supported by the Gatsby Charitable Foundation.