Hey, Children! What's That Sound?
/The Sea Lions have been exploring sound energy this week. Through some really fun experiments and some dedicated work in our Science Journals, we have discovered that every sound is produced by vibration. We learned that the change in those vibrations is what creates a difference in amplitude and in pitch. We discovered that the size of the vibration affects the amplitude of the sound, while a change in the frequency of vibration affects the pitch of the sound.
Then we began to explore how those sound vibrations make their way to our eardrums. We learned that sound energy needs a medium in which to travel, so we did some experiments that tested how well sound travels through cotton string, concrete, metal and wood. We found that nearly all other mediums are better at conducting sound waves than air!
