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Curriculum links



STEM club links

These resources support integrated Science, Technology, Engineering and Maths learning:


  • introduces the idea that dry chemicals and solutions behave differently by investigating the different ingredients of the mixture. 
  • Evaporation and the fact that witch hazel is a suitable liquid to use for moulding the fizzers can also be investigated by using other liquids which have different rates of evaporation.


  • Creating packaging for the bath fizzers from different materials available in school.


  • Examining the quality of different types of packaging and deciding what shape/material would withstand the greatest force so that bath fizzers reach customers undamaged.


  • If you introduce a youth enterprise element, club members could plan to market and sell the bath fizzers by working out unit costs and profit margins.

Curriculum links

This resource has been developed specifically for use within Key Stage 3 STEM clubs to provide enrichment and extension of the curriculum. However it may also be used for teaching elements of the curriculum at KS2 and KS4:

Key Stage 2

  • Ideas and evidence in science: It is important to test ideas using evidence from observation and measurement.
  • Investigative skills: Plan, obtain and present evidence; consider and evaluate evidence.

This activity also provides a great opportunity for cross-curricular learning linked to Art, Design, Maths and ICT (which could be used to record results and/or design and produce packaging).

Key Stage 3

  • Key concepts
    1.1. Scientific thinking
    1.2. Applications and implications of science
    1.3. Collaboration
  • Key processes
    2.1. Practical and enquiry skills
    2.2. Critical understanding of evidence
    2.3. Communication
  •  Range and content
    3.2. Chemical and material behaviour
  • Curriculum opportunities
    The curriculum should provide opportunities for pupils to:
    a. research, experiment, discuss and develop arguments
    c. use real-life examples as a basis for finding out about science
    f. use creativity and innovation in science, and appreciate their importance in enterprise
    k. make links between science and other subjects and areas of the curriculum.

This activity supports delivery of How Science Works as it allows pupils to explore science in use in the ‘real world’ in a product they may have personal experience of. It allows them to experience the scientific method and to understand that different scientists will have different views of the ‘best’ result (when coming up with their fizzer formula different student groups may set different criteria for success). They will also learn to apply some key concepts about rates of reaction and reaction between acids and bases (neutralisation).

Key Stage 4

  • How Science Works
    1.1. Data, evidence, theories and explanations
    1.2. Practical and enquiry skills
    1.3. Communication skills
    1.4. Applications and implications of science
  • Breadth of study
    2.2. Chemical and material behaviour