Science / Year 9 / Science Inquiry Skills / Evaluating

View on Australian Curriculum website Australian Curriculum, Assessment and Reporting Authority
Curriculum content descriptions

Evaluate conclusions, including identifying sources of uncertainty and possible alternative explanations, and describe specific ways to improve the quality of the data (ACSIS171)

Elaborations
  • identifying gaps or weaknesses in conclusions (their own or those of others)
  • identifying alternative explanations that are also consistent with the evidence
General capabilities
  • Literacy Literacy
  • Numeracy Numeracy
  • Critical and creative thinking Critical and creative thinking
ScOT terms

Sampling bias,  Reliability,  Evaluation

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Microscopic pollen helps catch a criminal

An expert in plant pollen finds herself working in forensic science, helping police solve crimes. Find out how Dr Lynne Milne's knowledge of plant pollen was used in a criminal investigation. See how soils have a 'signature profile' based on the types and abundance of pollen.

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Are you coordinated?

In this short clip Dr Karl asks Adam Spencer to model walking backwards and forwards. Adam successfully imitates a model on a catwalk but when he's asked to balance on one foot he finds it isn't so easy. Watch the clip to discover why, and then challenge yourself.

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Daniel O'Doherty

This 5 minute video segment from Catalyst describes how a school student conducted his own scientific investigation. Daniel O'Doherty was intrigued to find out what was the carbon impact of travel to and from school each day, and what could be done to reduce this impact. His project won the 2008 Action Against Climate Change ...

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Fossils and the evolution of life

Have you ever wondered how scientists know when the early mammals appeared on Earth, or how long ago dinosaurs died out? Watch this clip to discover the role of fossils, and the rocks they are found in, in revealing the order and history of life on Earth. This clip takes you to fossil sites in Queensland; and to Shark Bay ...

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Tropical palms in Tassie, 50 million years ago?

Travel back in time, deep into Australia's past, and find out what plant fossils from the Eocene epoch reveal about previous climate changes. Eocene plant fossils, found in rock in Tasmania, provide evidence about the landscape, vegetation and climate 50 million years ago. How might this information be useful for our future?

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Why vaccinate?

The human immune system's role is to deal with the threat of infection. However, sometimes the immune system fails to stop an infection that can lead to disease. Vaccines are used to prevent some diseases. Discover how a vaccine helps the immune system respond to the threat of infection. Find out why vaccination is a controversial ...

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Coral bleaching: threat to the Great Barrier Reef?

Scientist Dr Ove Hoegh-Guldberg describes the Great Barrier Reef as one of the most thrilling ecosystems on the planet. Discovering new things there makes him feel like a pioneer. In the early 1980s the sudden appearance of bleached coral was a mystery. Join Dr Ove Hoegh-Guldberg as he describes coral bleaching as a serious ...

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Daisies describe an ecosystem

Ecosystems are affected by many factors including increasing temperatures, which many scientists believe threaten natural systems on Earth today. This creative clip uses a theoretical world of black and white daisies to show how changes to the natural reflectivity of a planet's surface impacts temperatures and populations. ...

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Polar bear survival

Do you know what is threatening the survival of the world's largest land carnivore? Watch this clip of a polar bear as it moves across the Arctic ice, and find out about what is happening in its icy world. The World Wildlife Fund's Margaret Williams explains the feeding habits and adaptations of the polar bear, and identifies ...

Online

Collisions and biomechanics lesson

This lesson plan investigates ways in which automobile manufacturers seek to reduce injuries that occur in car accidents. Students note the effects of car accidents on human bodies, the factors that influence the type and severity of injuries, and the safety ratings of vehicles in which they travel regularly. The resource ...

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Sumatran tigers and paper mills

How might filling your printer with paper be affecting the survival of tigers? Watch this compelling clip to find out about the plight of Sumatran tigers in the wild, and explore the connection between them and paper mills. You will also discover how product labels might not always tell the complete story.

Online

Green packaging lesson

This lesson plan engages students in finding ways to reduce plastic waste in food packaging. Students investigate problems created by plastic waste then observe ways these issues are being addressed. They design new packaging for food items that currently produce excessive waste then test their designs objectively. The ...

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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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Increasing threat of megafires

Many scientists believe we are already experiencing megafires and that they will continue to increase in the future. In this clip you will hear from Australian scientists at the forefront of fire research. Discover what they have to say about the causes, projections, and consequences of an increased megafire threat.

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Check the pH before jumping into this wetland!

Can you imagine a wetland so acidic that its pH levels are similar to the acid in a car battery? It's part of a problem that scientists call acid mud. In this clip from 2008, see how it forms and what scientists are doing to better understand this environmental disaster.

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The Great Barrier Reef debate

How do we balance protecting the environment and allowing mining-related activities near World Heritage listed areas? In this clip you will see underwater footage of marine life on the Great Barrier Reef and images of liquefied natural gas (LNG) processing and shipping operations on the Queensland coast. Listen to the issues ...

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Greenhouse effect tips toward climate catastrophe

Follow the carbon atom, the central character in this story about oil, as it is released as carbon dioxide into the atmosphere and contributes to the greenhouse effect. See how other events like melting glaciers amplify that effect and contribute to an increasingly overheated climate. Learn about what might tip us over ...

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Carbon dioxide (CO2) fire extinguisher

Different types of chemical reactions are used in many everyday products. Watch this clip to see how two common household substances can be combined to create an 'Invisible Candle Extinguisher'.

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Cracking a glass by singing

Have you ever seen a glass being shattered by someone singing a top C, in a movie at least? To see whether it really is possible to crack a glass with just a sound, Sleek Geeks engage the help of real-life Australian opera singer Jane Parkin.

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Science is everywhere!

Every day we draw on science knowledge. In this clip, hear scientists from a range of fields as they describe how they apply their knowledge of science to everyday activities. What are some ways you use scientific thinking to evaluate tasks, activities and information during your day?