2. Annotated Diagram

This will form the background research to your Criterion D assessment. 

Do not spend more than a lesson on measuring/estimating masses/carbon cost

The information for the annotated diagram should be completed by Wednesday 28th January 2026

Key skill : Estimate a value

1. Parts: what are the names or function of the part? How are the parts related to each other?

2. Material: Identify the materials used. List some of the material’s physical properties.
   Common materials may be
   - plastic (can you identify the type of plastic, PP, PS, PET?)
   - metal (iron, aluminium, copper, gold etc)
   - composite (a mixture of stuff combined together)
   - glass and/or ceramics

3. Natural Resources: Identify natural resources used to create the material and where the main (biggest) sources of these resources are found in the world?

4. Estimate the mass of each material type

5. Carbon Cost: Estimate the cost to the environment in the manufacture and transportation of the material
   you will need to measure the mass of each type of material

Estimating Carbon Cost 

Physics/Design students - do not duplicate work. Do one presentation poster that includes all the rubrics for all the subjects that you are studying

Current CO2 in the atmosphere : 417ppm

The global average surface temperature in July 2022 was 1.15°C above the average for the comparison period of 1880-1920.

This is an increase from 385ppm in 2008 - a 9% increase in YOUR lifetime!

I don't have enough bottles in the lab to represent 1kg of gas, but here is an image of what volume 250g CO₂ represents in the atmosphere

• 250g is about 136 litres (at room temperature and pressure), or roughly 68 large Samdasoo water bottles.

• If that volume of gas was released in a 1m² column of air around you, it would raise the CO₂ levels by 25ppm

• For every 1kg CO₂ emitted, the CO₂ levels would increase by 100ppm in a 1m² column of air around you.*
  * This comparison adapted from a comment by Thomas Everth M.S. Physics, University of Duesseldorf

• This is the equivalent of the total rise of global atmospheric CO₂ in the last 50 years