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Listed under:  Science  >  Forces and energy  >  Energy use
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Energy efficiency in industry

Find out how industries can reduce their carbon footprints. This is an information sheet describing practices that can be used by industry to make energy use more efficient and thus reduce power bills as well as lowering greenhouse-gas emissions. A number of examples from the mining industry, such as the redesign of dragline ...

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Energy efficiency in homes

Find out how to save energy at home and reduce your carbon footprint. This fact sheet describes strategies that can be used in the home to reduce energy use and greenhouse gas emissions.

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Catalyst: Supercapacitors: new battery technology

Discover how nanotechnology is contributing to the creation of new, improved batteries that may soon be used in all our mobile phones and portable music devices - even in cars and trams. Catalyst's Tanya Ha looks at how traditional batteries produce electricity and how their efficiency may be increased by tiny devices known ...

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Output of a Solar Cell

This activity invites students to measure the efficiency of solar cells as they convert sunlight to power. The activity includes a list of tools and materials required, assembly instructions, what to do and notice, an explanation for the underlying science of what students observe and suggestions for further activities.

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Carbon is energy

We all use energy every day. Energy is available to us in many different forms - food, heat, electricity, petrol. But where does it all come from? This unit investigates the science of energy, renewable and non-renewable energy sources and how they can be sustained into the future. The unit includes PDF resources and video ...

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Activity: homework task - energy then and now

This is a web resource about changes in energy use over time that provides a student homework activity and a detailed teacher guide including questions for student discussion. The resource requires students to compare the electrical appliances currently used in their home with those used in the past. The activity encourages ...

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Catalyst: Shining the light on a more sustainable globe

Artificial lighting methods have changed with the invention of new lighting technologies designed to be more energy efficient and to reduce the use of resources. Since electricity has been used as an energy source, incandescent and fluorescent globes and, more recently, light emitting diodes (LEDs) have been used in our ...

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Comparing fuel consumption

Is it more fuel efficient to drive or fly between two places? Watch this clip and learn how to calculate the answer. What are the various factors that need to be taken into account? This video was made using the American measurement of gallons per hour, American firgures for the average number of passengers in a car and ...