Science in Grade 9 in Sri Lanka is a comprehensive subject that covers various branches of science, including Physics, Chemistry, Biology, and Earth Science. The curriculum is designed to develop scientific knowledge, skills, and attitudes among students, enabling them to understand natural phenomena and apply science in daily life.
Main Topics Covered in Grade 9 Science:
- Matter and Its Nature
- Properties of matter
- States of matter
- Changes in matter (physical and chemical changes)
- Energy and Its Forms
- Heat and temperature
- Light: Reflection and refraction
- Sound: Properties and applications
- Forces and Motion
- Newton’s Laws of Motion
- Effects of forces
- Work, energy, and power
- Living Systems
- Cell structure and functions
- Human organ systems
- Plant physiology (photosynthesis, transpiration)
- Ecosystems and the Environment
- Food chains and food webs
- Conservation of biodiversity
- Environmental pollution and solutions
- Earth and Space
- Structure of the Earth
- Natural resources and their importance
- Solar system and celestial bodies
- Introduction to Technology
- Simple machines
- Technological applications in daily life
- Safety precautions in using technology
Skills and Competencies Developed:
- Observation and experimentation
- Critical thinking and problem-solving
- Data collection and analysis
- Application of scientific knowledge in real-life scenarios
Assessment Methods:
- Written examinations
- Practical experiments
- Assignments and projects
The Grade 9 Science syllabus aims to build a strong foundation for advanced science studies in higher grades while encouraging curiosity and a scientific mindset among students.