- Logical Reasoning
- Respiration in Organisms
- Heat
- Winds, Storms and Cyclones
- Physical and Chemical Changes
- Transportation in Plants and Animals
- Electric Current
- Weather, Climate and Adaptations of Animals to Climate
- Fibre to Fabric
- Reproduction in Plants
- Light
- Nutrition in Plants and Animals
- Motion and Time
- Natural Resources and their Conservation
- Acids, Bases and Salts