Quick summary: Students experiment using trial and error and then refine their adjustments on a model wind generator. They find the best blade adjustments to maximize the efficiency of a wind turbine. Activity adapted from Save the Earth Science Experiments*.
Learning goals for this activity include:
- Identify the blade shapes that are most successful at creating energy when used in a wind turbine.
- Demonstrate ability to work independently or collaboratively to follow instructions and complete activity.
- Demonstrate ability to recognise and use a range of materials and tools to complete activity.
- Demonstrate ability to use models to explain or demonstrate a concept.
- Demonstrate ability to write and articulate scientific observations.
- Demonstrate the ability to work independently or collaboratively to research and compile information on issues and to communicate lessons from research through art or literacy exercises (extension).
Australian Curriculum Mapping
Year 7 Science
- Change to an object’s motion is caused by unbalanced forces acting on the object (ACSSU117)
- In fair tests, measure and control variables, and select equipment to collect data with accuracy appropriate to the task (ACSIS126)
Year 8 Science
- Energy appears in different forms including movement (kinetic energy), heat and potential energy, and causes change within systems(ACSSU155)
- In fair tests, measure and control variables, and select equipment to collect data with accuracy appropriate to the task (ACSIS141)
Syllabus Outcomes: SC4-5WS, SC4-6WS, SC4-10PW.
Year levels: 7 and 8
Indoor or outdoor activity: Indoor
Duration of activity: 45 mins
Learning areas addressed: Science, Design and Technology.
Level of teacher scaffolding: Gather and prepare equipment, assist students with experiment.
Resources required: Each group or pair will need the following: a rubber band, 1.5 volt DC motor, ruler, wire cutters, insulated wire, voltmeter or multimeter, 18 large paper clips, scissors, thin cardboard, cork, masking tape, fan, marker pens, electrical tape (optional), Worksheet 1, 2 and 3 (or create your own Worksheet 3).
Homework and extension opportunities: This activity has opportunities for homework and extension.
* Activity adapted from: Save the Earth Science Experiments (2008), Elizabeth Snoke Harris, Lark Books, New York, USA.
Keywords: Energy, renewable energy, wind turbines.
Cool Australia’s curriculum team continually reviews and refines our resources to be in line with changes to the Australian Curriculum.