2025 Grade 7 Integrated Science Paper 2 End of Term 2 Exam with Marking Scheme
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The assessment assesses the following practical skills and knowledge areas: Question 1: Investigation of Dissolution Rate This question requires learners to investigate the factors that affect the rate at which a solid dissolves in a liquid. Students are guided to test the effects of temperature (using warm and cold water) and particle size (using sugar crystals and powdered sugar). Skills assessed include following a procedure, recording observations in a table, drawing conclusions from results, and identifying the basic science skills and safety precautions applied during the experiment. Question 2: Measuring Volume of an Irregular Object This question requires learners to determine the volume of an irregular rock sample using the displacement method. Candidates need to record the initial and final volumes of water in a measuring cylinder to calculate the rock’s volume. The assessment focuses on accurate measurement, calculation, and understanding the scientific principle behind the method.
