Summary

• Description:

  The MS Word document comprises Grade 9 Integrated Science Practical August 2026 Holiday Assignment (Homework) with Answers. The PDF version is also available upon your request. The marking scheme and answers are towards the end of the file.

  This practical assessment task tests hands-on scientific skills, experimental design, scientific diagramming, data observation, and laboratory safety procedures. It covers water purification engineering techniques and plant physiological processes.

  It covers the following topics:

  • Task 1: Filtration System Practical
    • Designing, diagramming, and assembling a multi-layer water filtration apparatus (gravel, sand, cotton wool)
    • Recording experimental observations on water clarity
    • Explaining particle size filtration mechanics of sand and gravel layers
    • Methods for water sterilization for safe consumption (boiling)
    • Laboratory safety measures during practical apparatus handling
  • Task 2: Transpiration Practical
    • Setting up, diagramming, and executing a plant transpiration experiment using polythene enclosure
    • Observing moisture condensation and evaluating physiological evidence of transpiration
    • Definition and mechanism of plant transpiration through stomata
    • Importance of transpiration (cooling, nutrient transport, turgidity maintenance)
    • Environmental variables influencing transpiration rates (temperature, humidity)
    • Experimental safety precautions and agricultural soil water retention strategies (mulching)
• Category:

  Holiday Assignments
• Level:

  Grade 9
• Subject:

  INTEGRATED SCIENCE
• Posted By:

  Caleb_Peter

Enter your details below to initiate a payment using MPESA.