Science / Year 7 / Science understanding / Chemical sciences

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Curriculum content descriptions

use a particle model to describe differences between pure substances and mixtures and apply understanding of properties of substances to separate mixtures (AC9S7U06)

Elaborations
  • using representations of particles to show the difference between samples of pure substances and mixtures, and identifying examples of each
  • examining different solutions and identifying the solvent and solute
  • investigating and using a range of physical separation techniques such as filtration, decantation, evaporation, crystallisation, chromatography and distillation
  • exploring and comparing separation methods used in a variety of situations such as in the home, recycling industries and purifying water
  • analysing how the physical properties of substances in mixtures, such as particle size, density or volatility, determine the separation technique used
  • investigating separation techniques used by First Nations Australians, such as hand-picking, sieving, winnowing, yandying, filtering, cold-pressing and steam distilling
General capabilities
  • Critical and creative thinking Critical and Creative Thinking
ScOT terms

Mixtures,  Associativity,  Separation (Mixtures)

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18 direct matches to AC9S7U06 | 2 other related resources
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Rising water table | Questacon

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In this activity, students investigate salinity and water tables using simple house-hold objects and materials. The activity includes a list of what is required, suggestions of what to do and notice, questions to ask, an explanation for the underlying science of what students observe and suggestions for other related activities.

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Water games

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In this set of learning activities, students explore the question 'What process can be designed that will change people's habits towards water saving and result in reducing demand?' The module includes a comprehensive teacher guide, curriculum links, materials lists, design process guides and printable student resource ...

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Work sample Year 7 Science: Water purification

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This work sample demonstrates evidence of student learning in relation to aspects of the achievement standards for Year 7 Science. The primary purpose for the work sample is to demonstrate the standard, so the focus is on what is evident in the sample not how it was created. The sample is an authentic representation of ...

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Water quality

  • TLF-IDA004976

This lesson explores the concept that the way humans use land and water can cause water quality degradation. Students investigate the factors that influence water quality, the effects of poor water quality and management options for some water quality issues.

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Sandcastle ratios

  • TLF-IDA004621

In this lesson students think like geotechnical engineers, exploring the properties of sand and the ways in which those properties can be used in building and construction.

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Downloadable

Clean water challenge

  • TLF-IDA003804

In this activity, student groups investigate how to clean a dirty water mixture. The groups compete to see who can design a filter that produces the cleanest water in the shortest time

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Industrial design challenge – separating materials lesson

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is lesson provides a great introduction to the idea of separating mixtures and enables students to consider separation as a process that operates on macroscopic levels. Students also learn about waste management and recycling processes in Australia. The lesson provides students with an opportunity to engage in hands-on ...

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Online

Carbon is energy

  • TLF-IDM019917

We all use energy every day. Energy is available to us in many different forms - food, heat, electricity, petrol. But where does it all come from? This unit investigates the science of energy, renewable and non-renewable energy sources and how they can be sustained into the future. The unit includes PDF resources and video ...

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Elliot and the Surfing Scientist: Getting iron out of breakfast cereal

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You probably know your body needs iron and that you can get it from the foods you eat. Join the Surfing Scientist team as they attempt to extract iron from a bowl of breakfast cereal. What method do you think they will use?

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Elliot and the Surfing Scientist: From chocolate buttons to magic patterns

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Want to do a simple science experiment that works just like a magic trick? Watch the Surfing Scientist to find out how. He creates a pattern made up of regular shapes by dissolving coated chocolate buttons.

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Interactive

experiMENTALS: Spooky slime

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This resource contains a materials and instruction list and brief explanation for students about the process of making spooky slime with cornflour to produce a substance that is a little like a liquid and a little like a solid.

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Cool colour

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This is a lesson plan, complete with instructions, materials list, worksheets and photographs of the expected results from the ABC's surfing scientist. The students are encouraged to participate in a first-hand science activity using sugar and colour-coated chocolate lollies.

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Science talk 2007: Adam Cawley

  • TLF-IDM016656

An interview with Adam Cawley, a chemist and scientist from the Royal Australian Chemical Institute, who is an expert in drug testing in sport. Adam talks to a teacher from Killara High School about working as a chemist, and the challenges in drug testing.

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Interactive

DIY Lava Lamp

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This resource contains lessons plans containing instructions and teachers' notes for an activity based on a chemical reaction that occurs when a soluble aspirin tablet dissolves and the fact that oil and water do not mix are used to create a model of a lava lamp. Students have fun while they learn about density of fluids. ...

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experiMENTALS: Recycling plastics and glass

  • TLF-IDM016246

This resource contains suggestions for students about the process of using the internet to do research recycling in their local area. Help save the planet and teach your family how to become better at recycling.

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Experimentals: Name these mystery objects

  • TLF-IDM015928

Compete in a game show against characters Einstein and Pythagoras to identify three different mystery objects. Each of the objects is the end product of a science demonstration. Compare your ideas and predictions with the host Bernie Hobbs's identification of the objects and her explanation of the science behind them.

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Online

Water: learn it for life! - year 7 science

  • TLF-IDM012513

This PDF unit of work is one of a series of resources accessible by searching the list in the series.It includes two teaching and learning sequences: 'Water journeys' focuses on the water cycle, and 'Pure water' focuses on the processes and people involved in creating and managing drinkable water. It provides Australian ...

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Let the Poo Thru - iTunes app

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Choose what goes into the toilet and stop the objects that cause problems for waste treatment plants from getting through. Find out what effect things like apples and bleach have on treatment systems and discover a little about Australia's toilet habits along the way. Score points and challenge your friends as you let the ...

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Online

School of rocks: teacher resource

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In this structured inquiry unit of work students explore the formation of rocks and minerals. They investigate how the properties of rocks and minerals are related to their use, and how these naturally occurring materials provide valuable resources for human activity. Students also investigate the effects of volcanic activity, ...

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Interactive

Let's make slime!

  • TLF-IDM025327

This resource explains how to make slime using cornflour to produce something called a non-Newtonian fluid. A non-Newtonian fluid is a substance which has properties of a liquid and a solid. This means it can flow like a liquid, but also can have a set shape. It all depends on the amount of force you apply to it. In this ...

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