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Cleaning team challenge

Science Year 5
This unit is part of Year 5 Science Music Festival Materials

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Objectives

The cleaning team needs the best cloths in the business to keep on top of spills and mess. Can you make recommendations on the most absorbent and tough materials for the job?

Science Objectives
i) Give reasons, based on evidence from comparative and fair tests, for the particular uses of everyday materials, including metals, wood and plastic

Working Scientifically

  1. Plan different types of scientific enquiries to answer questions, including recognising and controlling variables where necessary.
  2. Take measurements, using a range of scientific equipment, with increasing accuracy and precision, taking repeat readings when appropriate.
  3. Record data and results of increasing complexity using scientific diagrams and labels, classification keys, tables, scatter graphs, bar and line graphs.
  4. Report and present findings from enquiries, including conclusions, causal relationships and explanations of and degree of trust in results, in oral and written forms such as displays and other presentations.

You Will Need

Provided Resources

  • Cleaning rep marketing words,
  • Sticky-notes investigation materials
  • Images of gloves

Additional Resources

  • A range of cleaning cloths (different materials, including kitchen towel)
  • Measuring jugs
  • Electronic scales
  • Marbles
  • Water

Lesson Planning

Teaching

  • Plan and implement investigations to compare absorbency, strength and durability.
  • Record and share investigation findings using different graph forms.
  • Apply knowledge of fabric properties to suggest fitness for purpose.

Activities

  1. Plan and set up investigations to test a range of materials for their absorbency, strength and durability.
  2. Record and present findings in a suitable graph/table.
  3. Select the materials that are most suited to cleaning.
  4. Make suggestions for suitable materials based on experience/knowledge.

Investigation - exploring/fair testing
Investigate the absorbency of materials suitable for cleaning with.

Vocabulary
Opinion/fact, variables, accuracy, precision, degree of trust, scatter graphs, line graphs

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