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Listed under:  Science  >  Forces and energy  >  Fundamental forces  >  Electromagnetism  >  Magnetism
StillImage

Dip circle used during Australasian Antarctic Expedition, 1911-14

This is a dip circle, a geophysical instrument used to determine the inclination of the Earth's magnetic field to the horizontal at a given location. It was manufactured by Moritz Meyerstein and is believed to have been used by Douglas Mawson on the Australasian Antarctic Expedition 1911-14. The instrument is 44.0 cm high, ...

Moving Image

Getting iron out of breakfast cereal

You probably know your body needs iron and that you can get it from the foods you eat. Join the Surfing Scientist team as they attempt to extract iron from a bowl of breakfast cereal. What method do you think they will use?

Moving Image

Nuclear fusion meets the circus

Merge the nuclei of hydrogen atoms in a fusion reaction and what do you get? Energy and lots of it! Could nuclear fusion provide a safe, sustainable energy source? That's the goal of scientists at the JET nuclear facility in England. They're on their way but have some serious challenges to overcome. See what they are and ...

Teacher resource

Backyard Science: mysterious magnets

This resource provides opportunities for students to explore how a non-contact force, magnetism, interacts with everyday objects. Students will investigate the behaviour of a variety of materials when placed near a magnet and classify objects as magnetic or non-magnetic. Students will use their experiences to identify the ...

Interactive resource

Electromagnetism: electromagnet basics

Explore the parts of an electromagnet circuit. Test objects made of different materials to find out whether they are affected by magnetic fields. For example, discover whether a rubber band is deflected by the field of an electromagnet. This learning object is one of three learning objects in the same series.

Interactive resource

Jet force: training

Shoot a disc at a target to score goals. Control the direction of the disc by applying linear forces. Use a single linear force or combine up to three forces. Train for a match by aiming accurately. This activity is one in a series of three activities.

Interactive resource

Jet force: match

Shoot a disc at a target to score goals. Control the direction of the disc by applying linear forces. Use a single linear force or combine multiple forces. Play a match where you score points by aiming accurately. This activity is one in a series of three activities.

Interactive resource

Jet force: championship

Shoot a disc at a target to score goals. Control the direction of the disc by applying linear forces. Use a single linear force or combine multiple forces. Take turns competing against a friend. Score points by aiming accurately. This activity is one in a series of three activities.

Interactive resource

Grumpy in the desert

Help a friend who has crashed his car in the desert and jumbled up food and equipment. Recover ingredients needed to make tea from the mixed-up supplies. Separate mixtures by using scientific techniques such as distillation, filtration, centrifuging and magnetism.

Interactive resource

Jet force

Shoot a disc at a target to score goals. Control the direction of the disc by applying linear forces. Use a single linear force, then combine multiple forces. Play a match where you score points by aiming accurately. Challenge a friend to compete in a two-player 'championship'. This activity is a combination of three activities ...

Interactive resource

How does the number of batteries affect the strength of an electromagnet?

Find out how the strength of an electromagnet depends on the number of batteries connected to it. Choose a particular number of batteries and then test the strength of the electromagnet by inserting it into a container of paper clips. Observe the number of paper clips the electromagnet collects and record this in the data ...

Collection

Australian animals

This collection of 25 digital curriculum resources is organised into four categories - communities of Australian animals, animals in art and stories, vertebrates and invertebrates. Images, including photographs, scientific illustrations and Indigenous art, depict some well-known and some lesser known Australian animals. ...

Video

The life cycle of echidnas

This is a colour clip showing the development of a juvenile echidna ('Tachyglossus aculeatus'), or puggle, from an egg to a sub-adult. The clip begins with a sequence showing some iconic Australian marsupials and the narrator explaining that echidnas are monotremes. Scientists are shown taking measurements and weights of ...

Image

Platypus walking on grass, 1971

This is a colour photograph taken in 1971 of a platypus walking up a grassy hill, perhaps on the bank of a stream.

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Short-beaked echidna, 1965

This is a colour photograph of the underbelly of a female short-beaked echidna or spiny anteater, taken in 1965. It reveals the echidna's powerful front claws, distinctive spines and pouch.

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A short-beaked echidna in water, 1966

This is a colour photograph, taken in 1966, of a short-beaked echidna swimming or wading through shallow water.

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Echidna rolled into a defensive ball, 1965

This is a colour photograph, taken in 1965, of a short-beaked echidna which has rolled into a defensive ball. Only its spines can be seen.

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Mascot costumes, Sydney 2000 Olympic Games

This is a suite of three mascot costumes that were designed in about 1997 by Matthew Hatton to promote the Sydney 2000 Olympic Games. The mascots are 'Syd' (a platypus), 'Olly' (a kookaburra) and 'Millie' (an echidna). Each costume consists of a cast foam head covered with synthetic fur and stretch fabric, a body made from ...

Video

Echidna the Survivor, 1995: Spike the monotreme

This clip shows an echidna foraging for food and then entering and swimming across a small stream. The narrator explains that, while the echidna spends most of its time on land, it can swim quite easily. The clip also includes commentary from biologists Peggy Rismiller and Mike McKelvey. Rismiller and McKelvey work at the ...

Video

Echidna the Survivor, 1995: Echidna birth

This clip shows a recently hatched infant echidna, which is called a puggle, in its mother's pouch. The tiny and hairless puggle is shown pulling itself up through the pouch to find its mother's milk. The clip cuts to a shot of the mother with her pouch being held open. The mother is then released into grassland. This clip ...