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Science of Healthy Skin

  • Age range: 9-11 years
  • Science topic: Materials
  • Type of enquiry: Comparative/fair tests, Observing changes over time, Problem solving

This resource is based upon actual processes used in an industry which researches, develops and produces ingredients for a wide variety of applications such as home care, personal products and health care. Through the sequence of activities, children explore some of the processes involved and challenges faced within the speciality chemical industry. They have opportunities to develop and implement both creative ideas and innovative solutions to scientific and industrial problems. The activities focus on innovation in science. Innovation is more than just having an idea; it’s about finding a way of turning ideas into reality.

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Science of Healthy Skin Full (PDF , 2,762kb)


Oil and water - From Fleece to Grease

Science topic: Materials
Type of enquiry: Observing changes over time
Keywords: lanolin, wool grease, immiscible, liquids, oil and water, detergent, emulsions, separate, investigate, observe, measure, changes, properties, mixtures, reversible, irreversible

Based upon the extraction of lanolin from wool grease, the activities include testing immiscible liquids using oil and water and investigating the effects of adding detergent to produce emulsions which in turn reduce the efficiency of the separation of oil from water. Products containing lanolin can be manufactured in pastille form. The final activity in this section involves investigating techniques for producing pastilles and testing the effect of viscosity upon the pastilles produced.


The pastillator - From Fleece to Grease

Science topic: Materials
Type of enquiry: Problem solving
Keywords: lanolin, pastilles, investigating, viscosity, solids, liquids

Based upon the extraction of lanolin from wool grease, the activities include testing immiscible liquids using oil and water and investigating the effects of adding detergent to produce emulsions which in turn reduce the efficiency of the separation of oil from water. Products containing lanolin can be manufactured in pastille form. The final activity in this section involves investigating techniques for producing pastilles and testing the effect of viscosity upon the pastilles produced.


Making foam - Fun with Foam

Science topic: Materials
Type of enquiry: Problem solving
Keywords: foam, formulation scientists, ingredients, recipes, observation, measurement, liquid, gas, reversible, irreversible, changes

Children develop a method for producing and measuring foam, whilst learning that formulation scientists choose ingredients because of their specific properties. They go on to mimic methods used by these scientists to make and test their own bubble bath recipe.


Comparing bath foams - Fun with Foam

Science topic: Materials
Type of enquiry: Comparative/fair tests
Keywords: foam, formulation scientists, ingredients, recipe, investigate, compare, fair test, variables, liquid, gas, reversible, irreversible, changes

Children develop a method for producing and measuring foam, whilst learning that formulation scientists choose ingredients because of their specific properties. They go on to mimic methods used by these scientists to make and test their own bubble bath recipe.


Increasing viscosity - Fun with Foam

Science topic: Materials
Type of enquiry: Comparative/fair tests
Keywords: viscosity, liquids, flow, changes, mixing, mixtures, observation, measurement, properties, changes

Children develop a method for producing and measuring foam, whilst learning that formulation scientists choose ingredients because of their specific properties. They go on to mimic methods used by these scientists to make and test their own bubble bath recipe.


Developing a bubble bath recipe - Fun with Foam

Science topic: Materials
Type of enquiry: Problem solving
Keywords: ingredients, formulation scientists, properties, materials, compare, investigate, liquid, gas, mixtures, changes

Children develop a method for producing and measuring foam, whilst learning that formulation scientists choose ingredients because of their specific properties. They go on to mimic methods used by these scientists to make and test their own bubble bath recipe.


Lumps or powder? - Safe in the Sun

Science topic: Materials
Type of enquiry: Problem solving
Keywords: materials, changes, properties, ingredients, compare, investigate, observe, measure, conclusions, solid

Children learn that some materials must be physically changed to enable them to be used as ingredients for applications such as sun care products. They learn that different levels of UV protection can be provided by using different types and amounts of ingredients in sunscreen products and go on to test a series of sunscreen products and rank in order of protection level.


Grinding solids - Safe in the Sun

Science topic: Materials
Type of enquiry: Problem solving
Keywords: hardness, solids, grinding, changes, powder, materials, properties

Children learn that some materials must be physically changed to enable them to be used as ingredients for applications such as sun care products. They learn that different levels of UV protection can be provided by using different types and amounts of ingredients in sunscreen products and go on to test a series of sunscreen products and rank in order of protection level.


Testing sunscreen products - Safe in the Sun

Science topic: Materials
Type of enquiry: Problem solving
Keywords: materials, changes, ingredients, sun care products, UV protection, sunscreen, investigate, rank, properties, light, protect

Children learn that some materials must be physically changed to enable them to be used as ingredients for applications such as sun care products. They learn that different levels of UV protection can be provided by using different types and amounts of ingredients in sunscreen products and go on to test a series of sunscreen products and rank in order of protection level.


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