Activity 01
Pairs Test: Sound Travel Comparison
Provide pairs with wooden rods, plastic tubes, and string telephones. Students tap each end, listen at the other, and rate loudness on a scale of 1-5. They record results in a table and discuss why solids transmit best.
Explain how vibrations create sound.
Facilitation TipDuring Pairs Test: Sound Travel Comparison, remind students to tap the table with the same force each time to isolate the medium variable.
What to look forAsk students to place their hand on their throat while humming. Then, ask: 'What do you feel happening in your throat? What does this tell you about how sound is made?' Listen for students using the word 'vibration'.