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Listed under:  Science  >  Matter  >  Atoms  >  Radioactivity
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Meteorites

This is an information sheet about meteorites, covering their sources, composition, classification, systems of naming and Australian laws governing their ownership.

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Gamma rays and space balloons

Have you ever wondered how scientists know so much about the universe when it's too far away to see and no one has ever been there? It's not just by using telescopes based on Earth. Watch as an international team of astrophysicists and engineers attempt to launch a balloon high into the atmosphere, loaded with expensive ...

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Japanese tsunami's nuclear threat, 2011

Remember the earthquake and following tsunami that hit Japan in March 2011 and damaged a nuclear power plant? Find out about the damage caused, what exploded and why, and the aftermath of the disaster. What debates about nuclear power plants were reignited by the events in Japan?

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Green glow of radiation

Coming into contact with a large dose of radiation is known to be hazardous. But will it make you light up like a car dashboard at night? Some anecdotes that will engage the students to learn about radioactivity while dispelling a few myths.

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When neutron stars collide

Using technologically advanced supercomputers, scientists have developed theories about the creation of black holes deep in outer space. Watch the computer simulation in this clip to see how the collision of two neutron stars produces a gamma ray burst and a new black hole. Discover that our continuing understanding of ...

Tablet friendly (Interactive resource)

Exploring atoms: atom structure

See how scientists such as Ernest Rutherford have investigated the structure of atoms. Explore possible models. Fire charged particles at atoms and find which model best fits the results. This learning object is one in a series of six objects. Three of the objects are also packaged as a combined learning object.

Interactive resource

Exploring atoms: assisted atom builder

Explore subatomic particles and how they combine to form atoms. Compare different ways of modelling atoms. Use nuclear symbols to represent different isotopes. Build atoms by combining protons and electrons. (Neutrons are automatically allocated.) This learning object is one in a series of six objects. Three of the objects ...

Interactive resource

Exploring atoms: atom builder

Explore subatomic particles and how they combine to form atoms. Compare different ways of modelling atoms. Use nuclear symbols to represent different isotopes. Build atoms by combining protons, neutrons and electrons. This learning object is one in a series of six objects. Three of the objects are also packaged as a combined ...

Interactive resource

Exploring atoms: ion builder

Explore subatomic particles and how they combine to form atoms. Compare different ways of modelling atoms. Use nuclear symbols to represent different isotopes. Build ions by combining protons, neutrons and electrons. This learning object is one in a series of six objects. Three of the objects are also packaged as a combined ...

Interactive resource

Exploring atoms: atom bingo

Explore subatomic particles and how they combine to form atoms and ions. Compare different ways of modelling atoms. Use nuclear symbols to represent different isotopes. Build atoms by combining protons, neutrons and electrons. This learning object is one in a series of six objects. Three of the objects are also packaged ...

Interactive resource

Exploring atoms: atom and ion bingo

Explore subatomic particles and how they combine to form atoms and ions. Compare different ways of modelling atoms. Use nuclear symbols to represent different isotopes. Build atoms and ions by combining protons, neutrons and electrons. This learning object is one in a series of six objects. Three of the objects are also ...

Interactive resource

Exploring atoms

Explore subatomic particles and how they combine to form atoms and ions. Compare different ways of modelling atoms. Use nuclear symbols to represent different isotopes. Build atoms and ions by combining protons, neutrons and electrons. This learning object is a combination of three objects in the same series.

Interactive resource

Where there's smoke

Explore how a smoke detector works in a home. Make smoke in a kitchen to trigger the beeping sound of a smoke alarm. Look at a circuit diagram and magnified view to see how an isotope interacts with ionised gases within a circuit gap. This learning object is one in a series of three learning objects.

Interactive resource

The alpha, beta and gamma of radiation

Use a Geiger counter to measure the alpha, beta and gamma radiation from a range of isotopes. Test how much radiation is absorbed by smoke, air and solids such as paper, glass and lead. This learning object is one in a series of three learning objects.

Interactive resource

Check your ions

Explore how a smoke detector works in a home. Make smoke in a kitchen to trigger the beeping sound of a smoke alarm. Look at a circuit diagram and magnified view to see how an isotope interacts with ionised gases within a circuit gap. Test a range of isotopes to see which will work in the smoke detector. This learning object ...

Interactive resource

Radioactive decay

Watch radioactive decay happen at the sub-atomic level. Make predictions and analyse graphs resulting from the decay of an array of radioactive atoms in order to determine the half-life of the element. For example, find the half-life of the radioactive element used in carbon dating, carbon-14. This learning object is a ...

Interactive resource

Radioactive decay: half life

Watch radioactive decay happen at the sub-atomic level. Make predictions and analyse graphs resulting from the decay of an array of radioactive atoms in order to determine the half-life of the element. For example, find the half-life of the radioactive element used in carbon dating, carbon-14. This learning object is one ...

Interactive resource

Radioactive decay: radiocarbon dating

Use radiocarbon dating to find and compare the ages of ancient remains. Convert organic samples to gas and use a Geiger counter to measure radioactivity. Use calculations and radioactive decay graphs to estimate the age of the samples. For example, check whether a bone from 'Sthenurus', a giant kangaroo, could be younger ...

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Constructing the Snowy Mountains Scheme

This collection of 24 digital curriculum resources focuses on the work of building the Snowy Mountains Hydro-electric Scheme. It is organised into seven categories: preparing the sites; bringing up supplies; drilling the tunnels; constructing the dams; building the power stations; constructing pressure shafts; and creating ...

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Mouth of the Guthega Dam tunnel, 1954

This is a photograph of the mouth of the underground tunnel from Guthega Dam to Munyang power station in New South Wales, which was part of the Australian Snowy Mountains Scheme. The photograph was taken by the Australian News and Information Bureau in 1954.