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Listed under:  Science  >  Scientific inquiry  >  Data collection  >  Evidence
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Testing the 5-second rule

When it comes to dropping food, have you heard of the 5-second rule? Or the 3-second rule? Watch this video to learn what really happens when you drop food. In order to cause disease, what must bacteria do? What circumstances allow bacteria and viruses to contaminate food more successfully?

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Four Corners: Ecological effects of bushfires

Did you know that Australia is the most flammable continent on Earth? Watch this clip to discover how bushfires impact natural ecosystems, and how the increasing global threat of bushfires may affect Australia. Australian scientists explain the ecological consequences of fire and a US expert describes his concerns for the future.

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Elliot and the Surfing Scientist: 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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Catalyst: Heat transfer: is it hot or cold?

If you picked up a paper book and a metal box do you think one would feel colder to the touch or would they feel the same? Watch this clip to see if people's predictions about the temperature of objects match their observations. You may be as surprised as they are!

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Catalyst: Sending seeds into space

Why might we need to keep a collection of seeds from all over the world? Where would we keep a collection like that? Should we send some of them into space? Watch this clip to reveal answers to all these questions and more.

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Catalyst: Volcanic eruptions at Mount Ruapehu

Imagine a volcano erupting kilometres away. You are afraid, worried for the safety of yourself and others. Paul Willis presents the work of New Zealand volcanologists conducting research at Mount Ruapehu, a volcano with a history of devastating lahar (water, sediment and rocks) flows. Learn more about lahar flows and the ...

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Catalyst: Indigenous eel farming

Discover a method for catching eels while watching how archaeologist Dr Heather Builth works scientifically, at Lake Condah to determine whether the Gunditjmara community were truly nomadic or used advanced farming techniques to support their way of life.

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Elliot and the Surfing Scientist: Food is stored energy

Elliot challenges Ruben Meerman, the Surfing Scientist, to do an experiment that involves explosions, pretty colours and lollies! Watch this clip to see what he comes up with. You might also learn something about chemical reactions and the stored energy in food.

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ABC News: Dr Karl discusses mining asteroids

Imagine an asteroid, half the size of a football field, hurtling towards Earth at a speed of 28,000 kilometres per hour! Watch this clip to find out about Asteroid 2012 DA14 and whether it poses any threat to Earth. You will also discover why mining prospectors are keen to capture asteroids such as this one. Could the next ...

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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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Four Corners: 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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Catalyst: Living in space

Do you know that people have been living and working in space for more than 10 years? The International Space Station (ISS) orbits the Earth more than 300 kilometres above us. Watch this clip to discover what life is like in space and the type of research that is conducted there.

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Anatomy of a raindrop

The water cycle is the circulation of water on, in and above Earth and it involves a number of stages and changes of state. This clip describes the water cycle and also how modern technology has contributed to our understanding of the shape of raindrops and its relationship to precipitation. Discover how raindrop shape ...

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Catalyst: Penguin wave better than a group hug!

Emperor penguins form a big, tightly packed huddle to keep warm in Antarctica, the coldest and windiest continent on Earth. But how do the ones on the outside of the huddle keep warm? Find out about a clever way of ensuring that no penguin is left out in the cold.

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Eyeballing colours

Fiery red, cool blue and sunny yellow are phrases used to describe feelings associated with colours. But what actually is colour? Why is it there and what helps us to see it? Follow Chloe Sheridan as she unravels the complexity of seeing colour by delving into its physics and biology. She entered this video in the 2013 ...

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The power of science photography

Visual art and science are often considered to be separate fields. Watch as Phred Petersen talks about the way he combines his passions of photography and science. What is the role of technology in enabling this crossover? What kinds of scientific discoveries can be assisted by high-speed photography? And how can scientific ...

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Elliot and the Surfing Scientist: Get Blown Away With This Air Experiment

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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Elliot and the Surfing Scientist: 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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BTN: Living on the International Space Station

What would it be like to live on a space station? In this clip you'll see footage of astronauts on the International Space Station and discover what their daily life is like. You'll also find out about how the space station was built and about some important research being done there.

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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 ...