Title|Introduction|Task|Process|Research|Drawing|Building|Write-up|Evaluation|Conclusion|Teacher Page

It’s not Rocket Science…

HAL Seminar

Introduction

The Department of Defense can’t keep up with the war on terror using regular methods. They are looking for people that can excel under pressure using everyday objects in innovative ways. They are looking for people who fill this description. Is it you? Your first task is to make a rocket out of two liter bottle…

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Task

You must create your own water bottle rocket that will be launched in competition with your classmates. The base of the water rocket will be a two liter soda bottle.

You will include blueprints, a force diagram, and a one page written explanation of the physics of your rocket.

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Process

Your project will occur in 4 phases:

1. Research

2. Drawing

3. Building

4. Write-up

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Process: Research

In order to build a successful rocket you must

know what makes it fly. Use the following sites to research these questions (and whatever else you think will be helpful):

– What makes the rocket (soda bottle) fly?– How can you maximize propulsion?– How does the body shape affect its flight?– What do fins do?

NASA Beginner's Guide to RocketsWater Rocket IndexRocket PrinciplesPractical Rocketry

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Process: Drawing

Now that you know what you’re looking for (hopefully), it’s time to come up with a plan. Make a scaled drawing of the rocket you will build labeling all materials. You may use graph paper by hand or use a program such a Visio.Remember: You must use a two-liter soda bottle as your base.How to Make a Scaled Drawing

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Process: Building

Assemble the rocket according to your blueprint.

Remember…You MUST use a two-liter soda bottle as the base/to hold the water.

Some encouragement that water rockets really do work:

2L Bottle

Mythbusters’ ultimate water rocketDon’t even think about it

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Process: Write-up

You are to write-up your rocket design. The write-up should justify all parts of your rocket. This includes, but is not limited to, body modifications and how much water was used. These should be explained using the physics concepts that you learned during your research.

You may use the form below to organize what needs to be in the write-up.Pre-write Chart

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Evaluation

Beginning1

Developing2

Proficient3

Exemplary4

Drawing

Drawing is incomplete

and unscaled

Drawing is complete

Drawing is scaled

Drawing is scaled and complete

Force Diagra

m

Correctly identifies no

forces

Correctly identifies

some forces

Correctly identifies

most forces

Correctly identifies all

forces

Write-up:How much Water

Fails to explain amount

Explains amount but

does not include law

Explains amount but

does not properly apply law

Explains amount and applies law correctly

Write-up:Body

Alterations

Identifies some

alterations

Identifies all and

explains some

alterations

Identifies and

explains all alterations

Identifies, explains,

and justifies all

alterations

Flight Time

Does not launch

Less than 5 seconds

Between 5 and 10seconds

Over 10 seconds

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Conclusion

Congratulations, Your application of your physics knowledge was superior. With a few more years of school you’ll be ready to save the world…

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Standards Addressed (Physics and Geometry):PH.3 The student will investigate and understand how

to demonstrate scientific reasoning and logic.PH.4 The student will investigate and understand how

applications of physics affect the world. PH.5 The student will investigate and understand the

interrelationships among mass, distance, force, and time through mathematical and experimental processes.

G.12 The student will make a model of a three-dimensional figure from a two-dimensional drawing and make a two-dimensional representation of a three-dimensional object. Models and representations will include scale drawings, perspective drawings, blueprints, or computer simulations.

Additional Resources:How Water Rockets WorkBuilding the Launcher

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