Do Re Me Fa Soda?
Recycling plastic bottles has never been this much fun. Gather six empty soda bottles, some food coloring (optional), a magic marker, a stick, and water. Fill a bottle with a small amount of water, then add a bit more water to each subsequent bottle. Bang the bottle with a stick as you fill it to hear the tone. Arrange the bottles from left to right, creating low notes to high notes. Mark each water line with the marker. Food coloring can be added just for fun!