Grade 7 Natural Sciences (NS) Term 3 (Via Africa)

This product contains all the work for Natural Sciences Grade 7, term 3 – based on the “Via Africa” textbook in English.

Topic 1: Sources of energy

• Unit 1: Renewable and non-renewable sources of energy

Topic 2:  Potential and kinetic energy

• Unit 1:  Potential energy
• Unit 2:  Kinetic energy
• Unit 3:  Potential and kinetic energy in systems
• Unit 4:  Law of Conservation of Energy

Topic 3:  Heat transfer

• Unit 1:  Heating as a transfer of energy
• Unit 2:  Conduction
• Unit 3:  Convection
• Unit 4:  Radiation

Topic 4:  Insulation and energy saving

• Unit 1:  Using insulating materials

Topic 5:  Energy transfer to surroundings

• Unit 1:  Useful and ‘wasted’ energy

Topic 6:  National electricity supply system

• Unit 1:  Energy transfers in the national grid
• Unit 2:  Conserving electricity in the home