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Achievement objective PEB 7-3

Students will:

  • explain the nature and life cycles of different types of stars in terms of energy changes and time.


  • Uses star maps to describe the characteristics of stars.
  • Uses different representations of the Hertzsprung-Russel (HR) diagram to recognise the position of different types of stars on the HR diagram.
  • Uses models, diagrams, photographs, and texts to represent the stages in the birth, life, and death of stars, and the energy transfers and transformations involved.
  • Uses models, diagrams, photographs, and texts to represent the characteristics of planetary systems and their formation from protoplanetary disks around young stars.
  • Uses models, diagrams, photographs, and texts, to represent the stages in the formation of planets and moons, and the transfers and transformations involved.
  • Shows an appreciation of the relative time that different stellar and planetary processes take.
  • Recognises the role of gravity in the formation of stars and planets.

Possible context elaborations

  • Where in the southern hemisphere night sky can we find examples of the stages in the life cycle of stars?
  • Where is the place of the birth of stars?
  • Where do we find the remnants of supernova, collections of young or old stars, or different coloured stars?
  • Māori astronomy and knowledge of stars.

Assessment for qualifications

At the time of publication, achievement standards were in development to align them with The New Zealand Curriculum. Please ensure that you are using the correct version of the standards by going to the  NZQA website.

The NZQA subject-specific resources pages are very helpful. From there, you can find all the achievement standards and links to assessment resources, both internal and external.

Learn more with NZQA subject resources for:

Aligned level 1 achievement standards were registered for use in 2011 and level 2 for use in 2012; level 3 will be registered for use in 2013.

Last updated September 15, 2020