Fair Yeast


Yeast is a living organism and is used in everyday life. What are the things that determine a living thing from a non-living thing? To make a fair test, questions must be posed and predictions made prior to testing the answers.

SESSION activities

  • Brainstorm ideas to find out if yeast is a living organism.
  • Plan and initiate an experiment to test the hypothesis
  • Discuss and understand the findings of the experiment
  • Use a variety of digital and other equipment to complete the experiments.

SCIENCE EDUCATOR demonstrations

  • Yeasts are living organisms and can be seen multiplying when given the correct food and conditions for growth.
  • Observe yeast multiplying

STUDENT experiments

  • Plan an experiment to test the growth of yeast
  • Use digital balances and stop watches to accurately conduct a fair experiment
  • Observe which foods and in what amounts yeasts require for different growth rates


Biological Sciences

Australian curriculum

Yr F- 2 Living things have basic needs, including food and water ACSSU002

Yr F- 2 Pose and respond to questions, and make predictions about familiar objects and events ACSIS024

Yr F- 2 Participate in guided investigations to explore and answer questions ACSIS038



Yr 3-4 Living things grow, change and have offspring similar to themselves ACSSU0309

Living things have life cycles ACSSU072

Yr 3-4 With guidance, plan and conduct scientific investigations to find answers to questions, considering the safe use of appropriate materials and equipment

Yr 3-4 With guidance, identify questions in familiar contexts that can be investigated scientifically and make predictions based on prior knowledge ACSIS065

Yr 5 -6 The growth and survival of living things are affected by physical conditions of their environment ACSSU094

Yr 5 -6  With guidance, pose clarifying questions and make predictions about scientific investigations ACSIS232

Yr 5 -6  Decide variables to be changed and measured in fair tests, and observe measure and record data with accuracy using digital technologies as appropriate ACSIS104

victorian curriculum

Yr F-2 Participate in guided investigations, including making observations using the senses, to explore and answer questions


Yr F-2 Living things have a variety of external features and live in different places where their basic needs, including food, water and shelter, are met



Yr 3-4 Questioning and Predicting VCSIS065

Planning and conducting VCSIS066

Yr 3-4 Different living things have different life cycles and depend on each other and the environment to survive VCSSU058



Yr 5-6 Questioning and Predicting VCSIS082

Planning and conducting VCSIS083