Objective

By the end of this lesson, the student will understand the basic principles of how hovercraft work, including the concepts of air pressure and friction. They will also learn about the fun and practical uses of hovercraft in real life.

Materials and Prep

• A flat surface (like a table or a smooth floor)
• A balloon
• A plastic bottle with a cap (like a soda bottle)
• A piece of cardboard or a plastic lid
• Scissors (for adult supervision)
• Marker (optional for decoration)

Before the lesson, make sure to have a safe space to work where the student can experiment without distractions. Know that we will be creating a simple hovercraft model using a balloon and a bottle.

Activities

• Balloon Hovercraft Creation

  Using the balloon and plastic bottle, the student will create a simple hovercraft. They will learn how to inflate the balloon and how to release air to lift the hovercraft off the surface.

• Hovercraft Race

  Once the hovercraft is built, set up a small race track on the flat surface. The student can race their hovercraft against a friend or family member's hovercraft to see whose design works best!

• Hovercraft Exploration

  After the race, the student can experiment with different designs by changing the size of the balloon or the shape of the base. They will observe how these changes affect the hovercraft's performance.

Talking Points

• "Did you know that hovercraft can float on air? They use air pressure to lift off the ground!"
• "When we blow up the balloon, we are filling it with air. When we let it go, the air pushes out and makes the hovercraft move!"
• "Friction is what makes it hard for things to slide. Our hovercraft reduces friction by floating on a cushion of air!"
• "Hovercraft can be used on land, water, and even ice! Can you think of places where they might be helpful?"
• "What do you think would happen if we made our hovercraft bigger or smaller? Let’s find out!"
• "Hovercraft are used by rescue teams and in sports too! Isn’t that cool?"
• "Let’s see how fast we can make our hovercraft go! Ready, set, race!"