1. Sound Interactions Objectives: Describe and give examples of sound wave reflection Describe and give examples of sound waves interference Describe and give examples of sound wave diffraction

2. Challenge ? Sometimes people who play in bands line their practice rooms with egg trays. Explain why might they do this.

3. Challenge ? Sometimes people who play in bands line their practice rooms with egg trays. Explain why might they do this. a.The bumps and groves act like little speakers to make the sound louder b.The bumps and groves scatter the sound so it doesn’t echo and bounce c.The bumps and grooves make it easier to hear high pitched sounds d.The bumps and grooves bend the sound waves to all areas of the room

4. Connection Why can you hear the base notes of a song throughout the whole house but usually not the lyrics?

5. Connection Why can you hear the base notes of a song throughout the whole house but usually not the lyrics? a.Because the low pitched base is louder than high pitched lyrics b.Because the low pitched base bends around walls and doors easier than high pitched lyrics c.High pitched sounds echo better than low pitched sounds

6. Vocabulary Reflection Echo Interference Resonance diffraction

7. Activities/Assignments