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Listed under:  Science  >  Scientific inquiry  >  Explanations (Scientific inquiry)
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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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Forms of energy: Connected Learning Experience (CLE)

In this investigation, different forms of energy and how they can be transformed from one form to another are investigated through examining the transformations involved in hydroelectricity. Students explore common ‘energy transformation’ devices and recognise that not all energy transformations are useful.

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Feeding relationships: Connected Learning Experience (CLE)

In this investigation, students explore and develop models of food chains and food webs to represent and analyse the flow of energy through ecosystems and explore the impact of changing components within these systems.

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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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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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Discovering the secret life of bees

What's life like for a honey bee? That's exactly what Tasmanian scientists are interested in finding out. They've been busy gluing tiny sensors between the wings of bees, so their movements can be tracked and we can learn more about bee behaviour. What are some of the reasons scientists give for wanting to better understand ...

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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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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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Matilda, a giant diamantinasaurus dinosaur

Matila is a giant sauropod, a diamantinasaurus around 95-98 million years old. It's one of the amazing dinosaurs discovered near Winton. Sauropods were giant herbivores (plant-eaters). Other kinds of sauropod include Brachiosaurus, Diplodocus, Apatosaurus and the massive Argentinosaurus.

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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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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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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 ...

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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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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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Where does honey come from?

Discover where honey comes from. Learn how and why honey is made and how we get different types of honey. See what daily life is like in a bee colony.

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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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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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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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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.