Chapter 2: Ear to Ear

📘 About this chapter

How animals hear and communicate, different types of sounds in nature.

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Learning Objectives

By end of this chapter you will:

Understand How We Hear and Animal Communication

Perform 1 practised experiment

Define: Sound, Vibration, Eardrum

Solve NCERT exercises confidently

🔗 Prerequisites

📌Chapter 1 concepts

📊 Chapter Stats

Difficulty🌱 Beginner

Est. Time36 min

Topics3

Formulas0

Experiments1

Progress0%

💡 Did You Know?

✦Sound travels at about 340 m/s in air (much slower than light at 300,000 km/s)

✦Dogs can hear frequencies up to 65,000 Hz; humans up to 20,000 Hz

✦Blue whales make the loudest sounds of any animal (up to 188 dB)

✦Noise above 85 dB for extended periods can cause hearing damage

🔑 Key Terms(click any term for AI explanation)