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Listed under:  Science  >  Matter  >  Molecular structure
Video

Awake the mind with caffeine chemistry

Caffeine is the world's most popular drug, but what is it and how does our body respond to its presence? Watch this clip to see the chemical structure of caffeine and the three compounds it metabolises into. Find out which receptor in the brain caffeine binds to, and the overall impacts it has on brain function and activity.

Video

Graphene: the new wonder material

Graphene is perhaps the most significant new material produced in recent years. It has many potential applications in electrical devices, biomedical technology and solar energy. Graphene is a form (allotrope) of carbon with some special chemical and physical properties. Watch this clip to explore the molecular structure, ...

Video

Precious metals

Why are some metals prized more for jewellery than others? Listen to presenter Bernie Hobbs explain the chemical reaction that affects the look and durability of metals. Using the periodic table and some dazzling computer graphics, Bernie demonstrates why 'oxygen-proof, low-reactivity, transition metals' such as gold keep ...

Online

The Australian Museum Science Festival

Find out about some of the great things on offer at the Australian Museum Science Festival. View some of the workshops and experiments at the Australian Museum, Sydney.

Video

How big are extremely small objects?

Imagine how big you might be compared to an ant, a speck of dust, a molecule or an atom. Explore the world of the very small, and find out just what units scientists use to measure extremely small objects.

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Male and female thylacines, 1841

This is a 36 cm x 55 cm hand-coloured lithograph of a pair of thylacines (‘Thylacinus cynocephalus’), commonly called Tasmanian tigers, against a background of small bushes and an open plain.

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Graptolite fossils - item 5

This is a colour photograph of a graptolite fossilised in rock. This species is 'Clonograptus persistens'.

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Southern gastric brooding frog

This is a colour photograph of a preserved southern gastric brooding frog ('Rheobatrachus silus'). It is a museum specimen viewed from the front.

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Trilobite fossil

This is a colour photograph of a fossil trilobite of the genus 'Kolihapeltis'.

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Zygomaturus fossil skeleton

This is a colour photograph of a 'Zygomaturus tasmanicus' fossil skeleton. The skeleton is a museum specimen and has been braced with metal rods. It is displayed in a standing posture.

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Graptolite fossils - item 1

This is a colour photograph of graptolites fossilised in rock. These are specimens of 'Pendeograptus fruticosus'. The figures visible on the rock are cataloguing numbers.

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Visit of Australian cricketers to the USA, 1913

This is the front page of a program printed in rust-red-and-black letters on a beige background, with the words 'OFFICIAL PROGRAMME COMMEMORATING THE VISIT OF THE AUSTRALIAN CRICKETERS TO AMERICA 1913'. The text is set within decoration in the Art Nouveau style.

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Gastropod fossil

This is a colour photograph of a fossil of a gastropod 'Tenagodus occlusus', showing the spiralled shell.

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Thylacine pup

This is a colour photograph of a preserved underdeveloped thylacine pup ('Thylacinus cynocephalus'). It is a museum specimen preserved in a glass container. Museum cataloguing labels are visible.

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Diprotodon fossil skull

This is a colour photograph of a fossil skull of 'Diprotodon optatum'. It is a museum specimen and has been mounted on a frame.