Close message Scootle has stopped supporting resources that use the Adobe Flash plug-in from 18 Dec 2020. Learning paths that include these resources will have alerts to notify teachers and students that one or more of the resources will be unavailable. Click here for more info.

Science / Year 9 / Science Understanding / Chemical sciences

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

Chemical reactions, including combustion and the reactions of acids, are important in both non-living and living systems and involve energy transfer (ACSSU179)

Elaborations
  • investigating reactions of acids with metals, bases, and carbonates
  • investigating a range of different reactions to classify them as exothermic or endothermic
  • recognising the role of oxygen in combustion reactions and comparing combustion with other oxidation reactions
  • comparing respiration and photosynthesis and their role in biological processes
  • describing how the products of combustion reactions affect the environment
Cross-curriculum priorities
ScOT terms

Enthalpy,  Acids,  Redox reactions

Video

Make no bones about ocean acidification

Extra carbon dioxide in the atmosphere is posing a real problem for the world's oceans. It's leading to ocean acidification and coral reefs are the big losers. See how acidification of the water leads to less calcium carbonate, a vital ingredient corals use to build their skeleton. Watch this clip to find out more.

Video

Magic tricks revealed using chemistry

Some magic tricks, such as disappearing ink or candles that won't blow out, can be explained by chemistry. In this clip, three classroom chemistry experiments demonstrate that some familiar magic tricks rely on acid-base chemical reactions, and the properties and behaviour of gases. Watch closely if you've ever wanted to ...

Video

The bang behind fireworks!

Ever wondered how fireworks are created? In this clip, pyrotechnics expert John Conkling describes the chemical and physical components of fireworks, and demonstrates many coloured explosions in a laboratory. Discover that a fireworks display is a chemical reaction between an oxidiser such as potassium nitrate and a fuel ...

Video

Recycling whole buildings

You probably recycle bottles, cans and paper at home, but imagine recycling whole buildings that have outlived their usefulness. Explore how doing this can save a huge amount of energy, prevent unnecessary carbon dioxide emissions and address landfill issues.

Video

Algae oil

Could algae be used to create an alternative to crude oil? It's not straightforward - but it is possible. This video describes how algae and waste products from other industries could be used to reduce our reliance on fossil fuels and play a part in controlling climate change.

Video

Dyeing with red cabbage!

Many natural products, such as red cabbage and turmeric, can be used as a natural source of colour to dye fibres. Watch the dyeing demonstration in this clip to see how. Discover the chemistry of natural dyes, including the bonding properties of different pigments and how acid-base reactions can alter the colour of pH-sensitive ...

Video

Try maintaining your shell in an acidic ocean!

The shell of the tiny marine snail called the pteropod is under attack from ocean acidification. See how research into this and the Southern Ocean circulation tells us about impacts of climate change. In this clip from 2010, find out about this research and the Southern Ocean Sentinel project focused on developing an early-warning ...

Audio

Reducing motoring emissions

Many businesses need to transport goods or people on a daily basis. Vehicles cause pollution and too many vehicles can result in road congestion. This audio clip describes environmentally friendly modes of transport. Explore the options with Catapult reporter Dominic Jarvis, then decide which might be best for different ...

Video

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.

Video

All about engines

What does 'horsepower' really mean? And how do engines work? Join Luke and Abhi from MIT to find out! As Abhi explains, engines produce power by forcing a mixture of fuel and air into a tight space and then burning it. Piston engines and turbine engines do this in similar, yet different ways. After watching this video, ...

Video

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.

Video

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 ...

Video

How our bodies burn food for energy

We burn food for energy in our bodies. Chemically it's the same as burning fuel for energy in cars and rockets. Listen to Bernie Hobbs explain more about combustion reactions. Discover why we don't burst into flames when we burn food in our cells.

Video

'Cooking' carbon to make crude oil

Visit the rugged Arabian mountains to see the exposed remains of the bottom of the ancient Tethys ocean, the prehistoric algal soup that gave rise to today's massive oil fields of the Middle East. Hear how oil-source rock laid down in the Jurassic Period changed over millennia as the Earth's surface was re-shaped. Under ...

Video

Addicted to oil, automobiles and petrochemicals

See how crude oil became indispensable to modern life as the transport industry developed and our 'thirst' for oil developed. Find out how petrochemicals derived from oil are contained in virtually everything, from plastics and paints, to pesticides and painkillers.

Video

Carbon and the origins of crude oil

Follow a carbon atom as the central character in a story about crude oil. Watch as this ancient chemical that has existed since the dawn of time is recycled through all life forms, oceans, rocks and the atmosphere. See the origins of the vast oil fields on which the modern world now depends.

Video

Towering global oil consumption

Watch as computer-generated imagery helps us imagine how much oil humans use every year.

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 ...

Video

Cells and energy

Cells are like chemical factories. Discover the different ways cells get energy to carry out their daily operations. Learn about the different types of metabolic processes inside cells, such as those that break down molecules to release energy and those that assemble building blocks to make more complex components.

Online

Popcorn, pikelets and chemical reactions: Connected Learning Experience

In this Connected Learning Experience students explore important chemical reactions such as neutralisation and combustion and their application in our world. They students will review the signs that indicate a chemical reaction has taken place and then apply this knowledge to their investigations.