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Assignment 3:

[lo 1.10]

Use the sketch in Appendix 1. It is important to give the rocket tail-fins so that it will be able to stand upright for the launch (See Appendix 1). Stick the page onto cardboard. Cut out the fin. Use the template of the fin and trace four fins on thicker, more rigid cardboard. Cut them out carefully. Fold on the dotted line and stick the fins around the bottle at equal distances. (Look at the sketch to see exactly where.)

Assignment 4:

[lo 1.10]


Do you know how to enlarge this sketch of a fin according to scale/proportional to a fin of ± 20 cm?

  • Draw squares across the sketch: 4 in the breadth and 8 in the length..
  • In this case, each square is 5 mm by 5 mm.
  • Draw squares of 30 mm by 30 mm on an A4 sheet of paper – 4 in the breadth and 8 in the length (8 x 30 mm = 240 mm that will give a fin of ± 20 cm).
  • Now trace the pattern onto the larger squares.
  • Now you have a fin of ± 20 cm

Assignment 5:

Decide which type of body fin will be the most suitable and draw a clear freehand sketch of your choice

[lo 1.8]

Assignment 6:

To make a final drawing (correct size with captions) of the body fin on a sheet of paper. use it as a template to trace onto a thicker sheet of cardboard. (use the method as explained in assignment 4).

[lo 1.14]

Assignment 7:

To build the body of the rocket according to the following instructions

[lo 1.14]


Make the body of the rocket by following the instructions below. Cut one 2ℓ bottle right through along the second line just below the sticker (Sketch 1). The part that has the cork in it will be the top section of your rocket. The intact bottle with the opening pointing down forms the lower section of your rocket. You need a weight in the top section of your rocket.


  • The rocket is not balanced when the engine is in the lower section. That is the heavier section. You have to find a centre of gravity, so that the mass can be spread proportionally on both sides.
  • It is therefore necessary to put something heavy in the upper section of your rocket so that the rocket can be more stable.
  • When the fuel is added, the lower section of the rocket will be even heavier.
  • When a rocket is stable, it continues flying vertically upwards, without overturning and losing direction.
  • So put a few fairly big pebbles in a plastic bank coin pouch and stick it firmly to the bottom on the outside of the intact bottle that is being held upside-down (Sketch 2).
  • Now put the top section of the bottle that has been cut through on top and stick it firmly to the intact bottle with masking tape/strong wide adhesive tape (Sketch 3).

Assignment 8:

In the space below, draw a top view of the position of the fins. use a protractor and pocket calculator for correct spacing

[lo 1.14]

Now affix the fins as planned. Once the rocket has been tentatively completed, it is now necessary to find your rocket’s centre of gravity and its centre of pressure.


Learning outcomes(LOs)
LO 1
Technological processes and skillsThe learner will be able to apply technological processes and skills ethically and responsibly using appropriate information and communication technology.
Assessment standards(ASs)
We know this when the learner:
Investigates:1.3 investigates the background context, the nature of the need, the environmental situation, and the people concerned when given a problem, need or opportunity set in a local context;
Designs:1.7 generates at least two alternative solutions and annotates the ideas;
1.8 chooses possible solutions, gives sensible reasons for choice, and develops a chosen idea using graphics or modelling techniques;
Makes:1.10 chooses and uses appropriate tools and materials to make products by measuring, marking, cutting or separating, shaping or forming, joining or combining, and finishing different materials with some accuracy;
1.11 use safe working practices and shows awareness of efficient ways of using materials and tools;
Evaluates:1.12 evaluates the product or system based on criteria linked directly to the design brief and some of the specifications and constraints, and suggests improvements or modifications;
1.13 evaluates the efficiency of the plan of action followed and suggests improving future plans;
Communicates:1.14 presents ideas (in a project portfolio) using two-dimensional or three-dimensional sketches, circuit diagrams or system diagrams.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
yes that's correct
I think
Nasa has use it in the 60's, copper as water purification in the moon travel.
nanocopper obvius
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
analytical skills graphene is prepared to kill any type viruses .
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Technology grade 7. OpenStax CNX. Sep 10, 2009 Download for free at http://cnx.org/content/col11032/1.1
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