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Consider the elements of fair tests and use formal measurements and digital technologies as appropriate, to make and record observations accurately (ACSIS055)
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Move animals from a boat to their new home in a zoo. Put them on a cart, then use monkeys to push or pull them up a hill. Use the minimum amount of force needed to move each animal. For example, use a single monkey to push a pelican or use three monkeys to pull a zebra. This learning object is a combination of three objects ...
Look at how a tree makes a shadow during a sunny day. Notice that objects always casts shadows that face away from the Sun. Examine how the shape and position of a shadow is related to the time of day and position of the Sun. Explore the shadows cast by different objects such as a bike, an umbrella and a child. Position ...
Substances that are very cold have different properties to substances that are hot. Watch as the Surfing Scientist uses hot and cold water, food colouring and a fish tank to demonstrate what happens when water at different temperatures is mixed together.
The way light moves through water presents some challenges for underwater photographers. Watch this clip to find out how cinematographer Pawel Achtel may have solved the issues of distortion and loss of sharpness sometimes observed in underwater images. See his innovative design at work.
Find out how to tell the time without a clock! A sundial uses the position of the sun to indicate the time. Typically, a stick (gnomon) casts a shadow upon a plane or surface that has markings, which indicate the time by the position of the shadow. See if you can create a sundial of your own.
Imagine a job where you have to dance on the tips of your toes! Ballerinas do this every day and they have to train hard in order to learn the correct technique. There's quite a difference between what the the audience sees them doing on stage and the way they prepare for performances. So, why do female classical ballet ...
An approximation is the nearest estimate without having the precise size or measurement of something. See how accurate estimates are made in logical ways using information about many things in our everyday lives.
In the mid-1800s in the colony of New South Wales, an astronomer and a special telescope called a transit circle were required to accurately calculate time at Sydney Observatory. Find out how time was calculated and how it was then communicated to the people below Observatory Hill in the surrounding town of Sydney.
Listen to scientist Dr Phillip Law describe the requirements of packing for a year's stay on Antarctica. See historic footage of packing the ship Kista Dan for the 1954 expedition to Antarctica. The Australian National Antarctic Research Expedition (ANARE) was established to set up scientific research stations in the Antarctic ...
Listen as scientist Dr Phillip Law recounts his experiences of expeditions to Antarctica. See historic footage of travelling through pack ice. The clip features the Kista Dan (1954 expedition) and the Magga Dan (1961 expedition). The Australian National Antarctic Research Expedition (ANARE) was established to set up scientific ...
What do you do when you need to measure a length, height or distance but don't have a ruler or some other measuring instrument? You can compute linear measurements with surprising accuracy using indirect measurements, proportions and estimations. Learn a nifty trick to measure a tree from a distance.
Take a journey with two 2013 Sleek Geeks Eureka Science Schools Prize finalists, as they present their take on the history of steam power. See how they link steam power, the properties of water and the way energy is converted. WARNING: if flickering light affects you, you may be best to avoid watching this video.
Can you imagine a world without plants? Do you agree that plants are important to our lives? Listen to Nick explain the amazing variety of ways you use plants every day, often without knowing it.
Explore the driest, windiest, coldest place on Earth. Discover why scientists flock to Antarctica every year. This clip explains how studying the tiny bubbles buried in the Antarctic ice can teach us about what the Earth was like long ago.
Scientists are helping police to identify the place of origin of illicit drugs that arrive on Australian shores. Watch this clip to find out how scientific analysis, computer databases and police investigation are used together to determine the source of drugs such as cocaine. Discover that international efforts are involved ...
Cyclone Yasi tore through Queensland's Cassowary Coast in 2011. As the largest cyclone to hit the region, it left towns like Tully and Mission Beach with a massive reconstruction task. Recently, the focus of local communities has turned to reducing their vulnerability to future cyclone events. This clip looks at the lessons ...
Discover how seals are helping scientists study Antarctica, polar regions, oceans and climate change. Scientists use Weddell and southern elephant seals to gather data and monitor the way currents move heat around the world's oceans.
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.
In 1914 Ernest Shackleton and his crew set out on an expedition to cross Antarctica via the South Pole. But things went horribly wrong when their ship was crushed by ice on the way. In this news clip, witness an Australian scientist about to set out with five others to re-create Shackleton's remarkable journey of survival, ...
What are non-standard measurement units? Did you know we can reliably use objects in the real world, including our own body parts, to measure things? This concept of anthropometry, the ratios of body measurements, was first proposed by Leonardo da Vinci.