Mada za sehemu hiiMada za sehemu hiiMada 31
- The concept of safety signs
- The interpretation of safety signs
- Uses of safety signs in the environment
- The concept of electrical energy
- The concept of geothermal energy
- Objects which float on or sink in water
- Archimedes’ principle
- The law of floatation
- The meaning of the antenna
- Types of antenna
- Quality of antenna
- Structure of complex machines
- Grain milling machine
- The concept of fire
- Factors to be considered during firefighting
- The concept of acid and base
- Indicators of acids and bases
- The Concept of Rust
- The concept of waste disposal
- Steps for disposing wastes
- An incinerator
- The concept of a balanced diet
- Nutritional requirements for different groups of people
- Physical exercise for various groups of people
- The concept of the nervous system
- The peripheral nervous system
- Sensory organs
- Disorders of the nervous system
- The concept of the respiratory system
- The importance of breathing
- Factors causing changes in the rate of breathing
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