You will need: a source of sound, like a ticking clock a balloon filled with water - a block of wood or a wooden door

Investigating how sound travels through different materials

Sound travels better through some materials than through others.
Look at the pictures to see what to do. Remember to stand the same distance away from the clock each time.
Listen carefully. How well did you hear the sound each time? Draw a table like the one shown. In the table record how well you heard the sound through the different materials.

Show how loud the sound was by using ticks:
✓ = soft ✓ ✓ = louder ✓ ✓ ✓ = loudest