Syringe Air Spring

The plunger pushes back and springs outward. Ask students to predict what will happen. Push the plunger against trapped air and release. Key idea: Air can be compressed and its pressure rises as its volume shrinks. Ask: Can air act like a spring? Safety and cleanup: Needle-free syringe only. https://www.google.com/search?q=%22Syringe%20Air%20Spring%22%20science%20demonstration%20experiment