Objectives Students will use observation skills to draw conclusions and make predictions. Students will learn about sound waves and how they travel. Materials Metal spoon String Journal Procedure 1. Start with a mini lesson about how sound travels .
Waves ripple out from the spot where the stone entered the water.
The way waves move across the water is similar to how sound waves travel through the air. When you speak or shout, your vocal chords vibrate . These vibrations travel in all directions through the air as waves. When the waves reach our ears, they make our eardrums vibrate too, so we can hear the words. But to get to our ears, sound waves need to travel through the air, which vibrates.