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Listed under:  Science  >  Forces and energy  >  Fundamental forces  >  Electromagnetism  >  Electricity
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Catalyst: Underground coal gasification

How are scientists using technology to get energy out of coal without having to dig it up? Find out how underground coal gasification (UCG) burns and converts the coal to gas underground. Visit UCG trial sites in Queensland and hear how UCG avoids some of the environmental effects of traditional coal mining, but may have ...

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Sciencey: Five things you should know about renewable energy

Check out how we make electricity, the different renewable energy sources we have developed and how batteries work. Then, find out about hydro-electricity and why Australia could one day be the world’s biggest exporter of renewable energy. Lastly, discover virtual power plants. Why is it important to focus on renewable ...

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Colourful Weather, Ep 3: Why sunsets and sunrises will never be blue or green

Can you guess how many sunsets and sunrises an astronaut on the International Space Station sees every 24 hours? Sixteen! Imagine seeing all those spectacular colours so many times a day (even if the view lasts only a few seconds as they zoom by). Find out exactly why sunrises and sunsets are red, orange and golden but ...

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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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The physics of invisibility cloaks

Could an invisibility cloak actually work? Prashanth and Maria from MIT explore this idea and demonstrate the cool ways that light bounces, bends and mixes. How do the wings of the Morpho Butterfly give clues about how an invisibility cloak could work? How would light need to be channelled in order for something to seem invisible?

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How does the retina work?

When electrons in your retina absorb photons of light they don't emit light, they cause a molecule to change shape - and that lets you see colour!

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Colourful Weather, Ep 1: What shape is a rainbow?

All you need is water, the sky and sunlight and you’ve got something that’s colourful – with a pot of gold at each end. What is it? A rainbow! Find out what happens to sunlight inside a raindrop, why rainbow colours are always in the same order and the real shape of a rainbow. Tip: it’s not an arch!

Interactive

Syllabus bites: Electricity

This resource is designed to support science teachers in addressing concepts in electricity in the BOS NSW Syllabus for the Australian Curriculum in Science - Stage 3. Making decisions about the use of electricity is approached from an understanding of circuits, sources and sustainability.

Interactive

Sites2See: Surf safety

A webpage about surfing safety, dangerous waves and rips, and the history and science of surfing. A 'For Kids' section provides games and quizzes for young swimmers and surfers.

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Measuring Voltage

In this simulation students select to measure the voltage across one, two or three light bulbs in series to measure the voltage drop across one, two of three bulbs.

Interactive

Oresome world

This interactive resource takes students on a journey of discovery in the energy and mining world. Oresome world contains five games or modules: Coal, Energy, Gas, Low emissions and Mining, and within each of these there are several facilities to explore, such as the Underground mining site, Hydroelectric power station, ...

Interactive

Thermal comfort – sustainability action process (Years 7–10)

This thermal comfort learning resource will guide students through an extended school based investigation. Students will develop and implement a chosen sustainability action and then evaluate and reflect on their success and their learning.

Interactive

Magnetism and Electric Current

Students use this resource consisting of nine slides with diagrams, written explanation and voice-over to understand that wires carrying an electric current produce a magnetic field and that a current in a coil produces a magnetic field pattern similar to a bar magnet. There is a two-question quiz and a summary slide.

Interactive

Circuit Diagrams

Students use this resource consisting of three slides with diagrams, written explanation and voice-over to understand how to draw simple circuits and the symbols used to represent them. There is a two-question quiz and a summary slide.

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Earthshine

This six and a half minute video segment from Catalyst explains Earthshine as light from our own Earth reflected back from the Moon's dark side. A PhD student is studying it to learn about how light reflects from a planet that contains liquid water as well as land. Her work may one day lead to the discovery of other planets ...

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Solar Prints

This 6 minute video segment from Catalyst is an excellent introduction to the science behind photovoltaics. A useful comparison of the efficiency of energy conversion. Discussion of other issues considered in producing devices to use renewable energy to make electricity.

Interactive

Series and Parallel Circuits

Students use this resource consisting of three slides with diagrams, written explanation and voice-over to understand how to the arrangement of bulbs in series and parallel circuits and understand the differences between them. There is a two-question quiz and a summary slide.

Interactive

Seeing with sound: sound lab tour

Explore how sound travels as a wave. Examine diagrams and simulations to answer a series of questions about sound properties. For example, identify the effects of compression waves on the vibration speed of particles. Test the effects of changing wave properties: frequency, wavelength and amplitude. Transmit sounds in a ...

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Using a pedal wireless transmitter

This is a photograph, possibly taken by John Flynn (1880-1951) and measuring 8.2 cm x 8.2 cm, of an elderly woman seated at a pedal wireless transmitter with three girls behind her. There is no microphone but the woman is operating a morse key. The woman and one of the girls are wearing earphones. The words 'AIM Pedal Transmitter' ...

Interactive

Energy chains: make electricity

Build up to six energy chains that make electricity. Select from different energy sources and choose energy converters to match. Examine the type of energy change that happens in each converter. Arrange the converters into the correct chain so that the energy can be delivered as electricity. For example, construct a chain ...