Objective

By the end of this lesson, you will be able to understand the basic concepts of air and its properties.

Materials and Prep

• Empty plastic bottle
• Balloon
• Straw
• Scissors
• Tape

No prior knowledge or preparation is required for this lesson.

Activities

1. Exploring Air Pressure:

   • Take an empty plastic bottle and poke a small hole in the cap using a sharp object like a nail or a pin.
   • Blow up a balloon and pinch the opening to keep the air inside.
   • Stretch the opening of the balloon over the hole in the bottle cap.
   • Observe what happens when you release the pinch on the balloon.

2. Creating a Straw Rocket:

   • Cut a small triangle shape at one end of a straw to create a rocket-like shape.
   • Tape the cut ends of the triangle together to secure the shape.
   • Blow into the other end of the straw and watch the rocket fly.

Transitional-Kindergarten Grade Talking Points

• "Air is all around us, even though we can't see it."
• "Air takes up space. That's why we can feel it when it moves or when we blow a balloon."
• "When we release the pinch on the balloon, the air inside pushes out and escapes through the hole in the bottle cap. This is because the air inside the balloon has higher pressure than the air outside."
• "When we blow into the straw, we are creating air pressure inside the straw. When we release the air, it pushes against the surrounding air and propels the straw rocket forward."