Build your own musical instrument using simple household items! You will learn how vibrations and compressed air create sound waves that travel to your ears.

Tools

• scissors
• ruler

Materials

• tongue depressors or large craft sticks (2)
• thick rubber band (1)
• thin rubber bands (2)
• cardstock paper (2 squares, 2-inches by 2-inches)
• clear tape (4 small pieces)

Safety

• Adult supervision recommended when using scissors to cut cardstock.
• Be careful with rubber bands to avoid snapping them against skin or eyes.
• Adult supervision required for sharp objects.
• Rubber bands can snap. Wear eye protection if launching projectiles.
• Adult supervision required for children under 8.

Steps

1. Take one tongue depressor and wrap the thick rubber band around the center of the stick, securing it firmly.
2. Take your first 2-inch square of cardstock and fold it in thirds to create a small, thick strip.
3. Roll a piece of tape so that it is sticky on all sides and place the folded cardstock onto the tape.
4. Take the second tongue depressor (the one without the rubber band) and press it onto the taped cardstock, leaving a small gap of space at the end of the stick.
5. Repeat the folding and taping process with the second 2-inch square of cardstock and attach it to the opposite end of the second tongue depressor, again leaving a small gap at the end.
6. Place the first tongue depressor (with the thick rubber band) on top of the second tongue depressor to create a 'stick sandwich'.
7. Wrap one thin rubber band tightly around the end where the cardstock is located, winding it 6 to 7 times to ensure it is very secure.
8. Repeat the tight wrapping process with the second thin rubber band on the opposite end of the harmonica.
9. To play, place your mouth over the opening and breathe in and out, or talk into the instrument to create musical vibrations.