Textbook
Chapter 1: Biodiversity
Chapter 2: Ecosystem
Chapter 3: Nutrition
Chapter 4: Human health
Chapter 5: Water and Solution
Chapter 6: Acid and Alkalis
Chapter 7: Electricity and Magnetism
Chapter 8: Force and Motion
Chapter 9: Heat
Chapter 10: Sound waves
Chapter 11: Stars and Galaxies in the Universe
Chapter 12: Solar System
Chapter 13: Meteoroid, Asteroid, Comet
Chapter 10: Sound waves
Topics in this chapter
1. Characteristics of Sound Waves
What you will learn in this topic
- Communicate about the basic characteristics of sound waves
2. Loudness and pitch of sound
What you will learn in this topic
- Explain frequency and its unit, and amplitude of vibration
- Relate frequency to pitch
- Relate amplitude to loudness
- Explain with examples loudness and pitch using musical instruments
3. Phenomena and Applications of Reflection of Sound Waves
What you will learn in this topic
- Explain with example phenomena related to reflection of sound waves such as echo and Doppler effect
- Explain with example the applications of reflection of sound waves
- Elaborate and communicate about limitations of hearing for humans and animals
- Explain with examples ways to overcome human limitations of hearing
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