Summary

• Description:

  The PDF document comprises KJSEA 2026 Integrated Science Paper 2 Prediction Paper with Answers (Set 1). The marking scheme is in a different document.

  It was a KJSEA Integrated Science Paper 2 prediction examination designed to prepare candidates for the national assessment.

  This practical examination assesses experimental design, observational accuracy, scientific data recording, and the practical application of physical and chemical principles.

  • Duration: 1 hour 30 minutes
  • Total Marks: 30 marks
  • Number of Questions: 2 (Questions 1–2)
  • Structure: Two compulsory practical tasks: Question 1 covers experimental investigation into diffusion and particle theory (20 marks); Question 2 covers optical ray experiments using curved mirrors (10 marks).

  It covers the following topics:

  • Question 1 (Diffusion and Particle Theory)
    • Investigating the effect of temperature on the rate of diffusion using potassium permanganate crystals
    • Timed scientific observation, data recording, and tabular presentation
    • Application of the kinetic particle theory to explain thermal effects on diffusion
    • Identification of secondary factors influencing diffusion rates
    • Laboratory safety precautions when handling chemical reagents and hot liquids
    • Identification and proper use of basic laboratory apparatus
  • Question 2 (Optics and Curved Mirrors)
    • Experimental identification of concave and convex curved mirrors
    • Image formation, projection onto screens, and focal point relationships
    • Describing image characteristics (nature, relative size, and orientation)
    • Practical and technological applications of curved mirrors in everyday life
• File Size:

  233.62 KB
• Length:

  4 pages
• Category:

  KJSEA Prediction Papers
• Level:

  Grade 9
• Subject:

  Integrated Science
• Posted By:

  Caleb_Peter

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