Every rocket battles against the air as it launches. The more aerodynamic its shape, the smoother it slices upward — and the higher it can fly. Just like sports cars, racing bikes, sharks, and even birds, your water rocket can be streamlined for better performance.

In this experiment, you’ll become aerospace engineers, designers, and test pilots all at once. Your challenge? Build the most aerodynamic nose cone possible and prove that your design truly enhances flight.

1. Investigate the Power of Streamlining

Work in a team to create a list of animals, vehicles, and objects where streamlined shape is essential for speed and efficiency. Think dolphins… jets… peregrine falcons… racing cars… anything that cuts through air or water with ease.

Turn your ideas into a bright, visual wall chart to share your discoveries.

2. Design an Aerodynamic Nose Cone

Use your knowledge of streamlined shapes to design a custom nose cone for your water rocket. Your goal is to reduce drag, improve airflow, and ultimately boost the rocket’s height.
Sketch your design… then bring it to life!

3. Build, Fit and Test your Nose Cone

Attach your nose cone securely to the rocket and head to the launch zone.

• Run test flights with and without the nose cone.
• Record the height achieved each time.
• Then calculate the improvement your design made: What % higher did the rocket fly with your nose cone attached?
• Present your results in a creative display — graphs, photos, diagrams, anything that shows off your engineering success.

4. Explore Drag in Action

Think about how drag affects the rocket’s movement during launch and flight:

• Which parts slow it down?
• How does shape influence the amount of drag?
• What could you improve further?

Try testing different nose cone shapes — pointed, rounded, long, short — to discover which one performs best.

Need Some Engineering Inspiration?

Watch this video to learn more about how nose cone shapes work using fluid dynamics.