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Listed under:  Science  >  Scientific inquiry  >  Explanations (Scientific inquiry)
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Using a lens to bend light

How can a water-filled plastic straw be used to decode a secret message? Watch as the Surfing Scientist demonstrates how lenses with a curved surface do curious things to light.

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Change of state: liquid to gas

Substances exist in different states depending on the temperature. Watch the Surfing Scientist have a popping good time as he demonstrates this phenomenon. Don't forget to block your ears!

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Salt water density experiment

Discover what density is and how you can test the density of liquids. You will also find out about salt water and how its density is responsible for the circulation of water around the world's oceans.

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Megafires

Are we approaching the 'age of megafires'? It might sound like something out of a sci-fi movie, but some scientists believe there is cause for concern. Watch this clip to find out how bushfires as we know them are changing. Discover why.

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Why does a grapefruit float?

Why does a grapefruit float when it's skin is on, but sink when it's skin is removed? Watch these young scientists perform an experiment with grapefruit in water and discover the connection between grapefruit skin and life jackets.

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Ways to catch and eat fish

Discover the many ways that people eat fish. Watch how the fish called tuna are caught and made ready for sale. Find out how some tuna is farmed and how the tuna farmer meets the needs of these tuna.

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An ichthyosaur from the age of dinosaurs

Take a close look at a fossilised ichthyosaur skeleton with Maria Zammit, a PhD student from the University of Adelaide. Maria is studying the ichthyosaur and comparing it with dolphins and other living marine creatures to try to work out how it swam.

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Pepper scatter experiment

Watch what happens in this pepper scatter experiment by Surfing Scientist, Ruben Meerman. Ruben demonstrates an important property of water, surface tension, by dipping a toothpick into water sprinkled with pepper. Find out what happens when detergent is added.

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Rockets, Mars, Space Shuttles and Space Stations

<span style="color: rgb(51, 51, 51);">Discover how space exploration has developed over the years. Find out about different space missions and experiments, and a range of spacecraft from the early probes to more complex shuttles. Where do you think space exploration might take us in the future?</span>

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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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Finding fossils from the age of dinosaurs in Rascal Flats

Visit the fossil site of Rascal Flats, Richmond, with Dr Ben Kear, a paleontologist at La Trobe University. Hear about the chance discovery of a new fossil and see a fish fossil from the ancient inland sea.

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Meet muttaburrasaurus, a plant-eating Australian dinosaur

Dr Ben Kear, a paleontologist at La Trobe University, introduces muttaburrasaurus, a dinosaur found near Muttaburra in Queensland. Muttburrasaurus was a giant herbivore, a plant eater. What does its fossilised skull really look like?

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Friction: friend or foe?

What part does the force of friction play in our everyday lives? Friction can be an advantage (friend) or a problem (foe). Join interviewer Doug Traction and professors Static, Slide, Rolling and Fluid at the National Tribology Research Centre as they have forceful fun investigating friction. This video won a prize in the ...

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What are microbes?

What are microbes? What are the four major groups that most microbes belong to? Listen as Dr Taghrid Istivan explains where microbes are found. What is the name of the group of microbes she describes as beneficial to our health? Can you explain what happens when people get food poisoning?

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Left paw right paw

Do you think left-handed people have characteristics that are different from right-handed people? It seems that right-pawed dogs have certain characteristics that make them better Guide Dogs, but how do you find out whether your dog is right-pawed or left-pawed to begin with? Watch this experiment to find out!

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Do dogs really care?

We'd like to think our dogs offer us comfort when we get upset or injured. Can the 'classic test' of empathy in humans tell us something about dogs? The reporter investigates the phenomenon of empathy: the ability to be aware and sensitive to the feelings of others from their perspective.

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Ramping it up, Egyptian pyramid style

How did the ancient Egyptians move and lift huge stones during construction of the pyramids? Secondary student Angus Atkinson designed an experiment to find out how the lives of pyramid workers could have been made easier. See how as you watch this video, which he entered in the 2013 Sleek Geeks Eureka Science Schools Prize.

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Coffee spill

When you walk with a glass or a cup filled with liquid, do you find yourself spilling some of the liquid? Some scientists have studied why this happens and how best to avoid it.

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Snapshots of top Australian scientists

Australia has produced many of the world's top scientists. Watch this clip to discover who some of them are. Explore the scientific discoveries that made them famous, and how they changed our understanding of the world.

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Animal and plant adaptations

What makes an organism suited to a particular environment? View a range of animals and plants to investigate adaptations that improve their chance of survival. Link the adaptation which might be an external structure, an internal structure or an exhibited behaviour to its function (purpose). Explore strategies of migration ...