• 1 . Sounds
• 2 . Wind Instruments
• 3 . String Instruments
• 4 . Percussion Instruments
• 5 . How we hear sounds.
• 6 . Brass Instruments
• 7 . The violin
• 8 . Shake, rattle and roll.
End
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• Sounds are created by something vibrating (moving very fast). The vibrations set up sound waves in the surrounding air.
• Sounds move like waves in water but much faster.
• Sound waves are detected by the air in the ears.
• Instruments make sounds:
Wind instruments
String instruments
Percussion Instruments

• The player’s breath makes the sound in a wind instrument.
• The breath flows through or across a hole or an edge or causes a reed to vibrate.

• String instruments use tightly stretched string or wire to make a sound.
• The player plucks hammers or strokes the string to make a sound.

• Percussion is the name given to instruments that create sound by being scraped shaken hit or struck

• Sound waves reach the outer ear and makes the ear drum vibrate .
• This makes 3 little bones move inside the inner ear.
• The fluid in the snail- shaped organ moves.
• Tiny hair cells inside also detect the movements.
• Signals are sent to the brain by the auditory nerve.

• This is a trumpet.
• A trumpet is a valved, wind instrument.
• All notes in the trumpet’s range can be played using a combination of three valves.
• Pressing on the valves changes the length of tubing that the air flows through.
• The shorter the tube, the higher the note.

• The violin is a string instrument.
• A bow is used to slide back and forth across the strings.
• The player changes the pitch of the strings by holding his fingers against the strings.
• The player can also pluck at the strings.

• These are all untuned percussion instruments.
• The pitch cannot be altered.
• A percussion player has to learn to play all kinds of instruments.
• Evelyn Glennie is a famous percussionist. She ‘feels’ the sounds as she is deaf.