Water bottle Rocket

Water Bottle Rocket

Aim: I Want to investigate how far they can fly 

Method: Equipment 1.5L plastic bottle

Instructions: cut the fins 

Water Rocket

Use the  Water rockets booklet. The booklet will have the 

answers for many of your questions.

Aerodynamics

Aim: To investigate the best design features for your water rocket.

Read page 20 of the booklet.

Section 1: What is a water Rocket

Its Simple, a water rocket is basically an upside down fizzy drink, Bottle which has had a 'Nose' cone and some fins added. 

The nose cone

The job of the nose cone is to make the rather snub-nosed end of the fizzy drink bottle more aerodynamic also if you have 'payload' on your rocket or a parachute mechanism this is probably where it will be placed.

the Fins

Others might disagree but i think the fins are the parts of a rocket that really give a rocket its character technically, the fins are important for ensuring that the rocket flies smoothly

Once we have added the fins and the nose cone, we have something which looks like a rocket. But how do we make it go like a rocket? 

First we need to add some water, and some kind of release mechanism, that will keep the water in the bottle, until we choose to release it. The water will then leave the bottle through its nozzle. 

Typically the bottle will be between about one quarter and one third filled with water. 

Launch

 To launch the water rocket, we need to pump air into the rocket: this provides the energy for the launch. As the air enters, it bubbles up through the water and pressurises the ‘empty’ space above the water. You can see that the release mechanism has to be really quite clever, allowing air into the rocket, while not allowing the water to escape until we activate a trigger. 

Flight - Aerodynamics

Aim: To look at the 4 main forces of flying and how these can be overcome.

Hypothesis: I think that.......

Method: Working in pairs you are going to make a paper wing and experiment with it.

1. Make a paper wing out of A4 paper 
2. On the field you will need to record and observe how 5 different changes affect the way it flies.

Plane type	How does it behave?	Time ( secs)
Paper sheet, drop
Paper with fold down middle, drop
Paper with fold and 1 paper clip, drop
Fold, 2 clips, rudder, drop
Fold, 2 clips, rudder throw

Electrical Engineer

Electrical engineers work in a very wide range of industries and the skills required are like wise variable. These range from basic circuit theory to the management skills required of a project manager. The tools and equipment that an individual engineer may need are similarly variable, ranging from a simple voltmeter to a top end on the analyzer.

Art

ASK: CREATE A SUPERHERO THAT REFLECTS OUR PLACE TO STAND - TURANGAWAEWAE.

Use as motivation: We are Hornby, Hornby High School, you as a student, your background, your culture, The Treaty of Waitangi as a founding document, Robyn Kahukiwa, Jason Te Puia, Marvel & DC Heroes.

Write all the ideas that you have down on an A3 page. Make this page look good - workbook page!

So far we have looked at and understood:

1. Pencil sketching of bodies in proportion   
2. History of American superhero comic books
3. Pencil shading
4. What is a workbook page
5. The Treaty of Waitangi
6. Robyn Kahukiwa
7. Kowhaiwhai

PK = Practical knowledge UC = Understanding content

All Sorts Of Spheres

1. How much of the earth is made up by hydrosphere?
2. How much of the earth is made up by lithosphere / ground?
3. What is the atmosphere made up of?
4. What does the biosphere contain?

• Hydrosphere.

• Name the different water types you find?

• Lithosphere.

• Name 5 examples of the lithosphere?

• Atmosphere.

• What is two gases are in the atmosphere?

• Biosphere.

• Define the biosphere?

• About 30% of the earths surface is land

         (Continence and islands).

• The Air we breathe is part of the earth's atmosphere
• - 78% Nitrogen, 21% Oxygen 
• The Biosphere it