Air Pressure Experiment with a Syringe

Syringe (without needle).
Small balloon.
Water (optional)..Prepare Syringe: Place the balloon over the end of the syringe.
Pull Plunger: Pull the plunger back to create a vacuum inside the syringe.
Observe: Observe how the balloon inflates as the air pressure inside the syringe decreases.
Experiment with Water: (Optional) Try the experiment with water in the syringe to see how pressure changes.
Record Observations: Have students describe the balloon’s behavior.
Discussion: Discuss the effects of air pressure and vacuum.