Hooked On Science – Musical Straw
PLEASE follow these safety precautions when doing any science experiment.
• ALWAYS have an adult present.
• ALWAYS wear the correct safety gear while doing any experiment.
• NEVER eat or drink anything while doing any experiment.
• REMEMBER experiments may require marbles, small balls, balloons, and other small parts. Those objects could become a CHOKING HAZARD. Adults are to perform those experiments using these objects. Any child can choke or suffocate on uninflated or broken balloons. Keep uninflated or broken balloons away from children.
• Plastic Drinking Straw
• Pipe Cleaner
STEP 1: Flatten one end of the plastic drinking straw.
STEP 2: Using the scissors cut a triangle into the flattened end of the straw.
STEP 3: Place the cut end of the straw into your month and blow. Provide evidence that vibrating materials can make sound and that sound can make materials vibrate.
STEP 4: Using the illustration of a sound wave, to the right, under “science background,” develop a model of a sound wave with the pipe cleaner. Identify the different parts of the wave.
Sound is vibrations moving through matter. As you blow into the straw, air moves over the cut end of the straw, causing vibrations, which create sound waves.