Understand the action and reaction of Newton's third law of action and reaction. Fill the balloon with air, and the air in the balloon is exhausted out through the habit. At the same time, the balloon car moves rapidly in the opposite direction of the wind.
Blow air into the tube to make the balloon bigger, then put the car on the ground and the car will move quickly in the opposite direction of the airflow released by the balloon.
![[STEAM Children's Hands-on Series] Balloon Powered Car DIY Experimental Equipment](http://www.loklibuy.com.hk/cdn/shop/files/2025-03-11113835.png?v=1741664679&width=1445)
![[STEAM Children's Hands-on Series] Balloon Powered Car DIY Experimental Equipment](http://www.loklibuy.com.hk/cdn/shop/files/2025-03-11113822.png?v=1741664680&width=1445)
![[STEAM Children's Hands-on Series] Balloon Powered Car DIY Experimental Equipment](http://www.loklibuy.com.hk/cdn/shop/files/2025-03-11113805.png?v=1741664679&width=1445)
![[STEAM Children's Hands-on Series] Balloon Powered Car DIY Experimental Equipment](http://www.loklibuy.com.hk/cdn/shop/files/2025-03-11114009.png?v=1741664679&width=1445)
![[STEAM Children's Hands-on Series] Balloon Powered Car DIY Experimental Equipment](http://www.loklibuy.com.hk/cdn/shop/files/2025-03-11113856.png?v=1741664679&width=1445)
