Natural Sciences

Grade 7 Natural Sciences March Paper and Memo: Total:  40 Marks. Contents of the exam paper contains the following details: Biosphere | Biodiversity | Sexual Reproduction This is a practice paper with memorandum meant to test the student's knowledge, and will not be the same paper written for the exam. THE SMI

This document provides a comprehensive summary of potential and kinetic energy in systems. It looks at the difference between potential and kinetic energy with definitions and the different energy systems, including: Mechanical systems, thermal energy, electrical systems and biological systems. Examples and pictures have been included for increased understanding.

This is a comprehensive summary of energy for Grade 7 Natural Sciences. It provides in-depth explanations of each aspect of energy, including: Sources of energy, types of energy, types of energy systems, energy efficiency, calculating efficiency, heat transfer, energy transfer and heat insulation. In addition, it includes plenty of examples and pictures/graphs/diagrams/illustrations to support understanding.

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