This product contains Term 3 summaries and Mind-Maps for Natural Sciences (NS) Grade 7, and is based on the “Platinum” textbook in English.
Topic 9:    Sources of Energy
Topic 10:  Potential and Kinetic energy
Topic 11:  Heat transfer
Topic 12:  Insulation, Energy saving and Energy transfer to the surroundings
Topic 13:  The National Electricity supply system