Science / Year 9 / Science Understanding / Chemical sciences

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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

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Year level 9-10
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Learning area Science
Interactive resource

Chemical reactions: balancing equations

Investigate chemical reactions at a molecular level. Balance chemical equations. For example, explore how nitrogen combines with hydrogen to produce ammonia. Work out the number of molecules of each substance needed to balance the chemical equation. This learning object is one in a series of six objects. The series is also ...

Interactive resource

Chemical reactions: combustion

Investigate chemical reactions at a molecular level. Break apart molecules of oxygen and another substance into their component atoms and rearrange them to make molecules of new substances. For example, explore how methane burns in oxygen to produce carbon dioxide and water. Work out the number of molecules of each substance ...

Interactive resource

Chemical reactions: energy

Investigate chemical reactions at a molecular level. Break apart molecules of two substances into their component atoms and rearrange them to make molecules of new substances. For example, explore how nitric oxide combines with oxygen to produce nitrogen dioxide. Work out the number of molecules of each substance needed ...

Interactive resource

Chemical reactions: reaction reshuffles

Investigate chemical reactions at a molecular level. Examine collisions between molecules of two reactants. Adjust the ratios of the reactants and compare the outcomes. Identify the number of molecules involved in a balanced reaction. For example, two A molecules combine with a B2 molecule to form a molecule of A2B2. This ...

Moving Image

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 ...

Text

Chemical Reactions: student guide

This is a student guide that takes an in-depth look at chemical reactions with individual chapters on the structure of atoms, chemical changes and formula, radioactivity and nuclear energy, energy changes, and reactions involving acids and bases. Each part or chapter of this resource contains information, images and diagrams, ...

Interactive resource

Chemical reactions: energy released by fuel

Investigate chemical reactions at a molecular level. Break apart molecules of oxygen and a fuel into their component atoms and rearrange them to make molecules of new substances. For example, explore how glucose burns in oxygen to produce carbon dioxide and water. Work out the number of molecules of each substance needed ...

Interactive resource

Chemical reactions: non-combustion

Investigate chemical reactions at a molecular level. Break apart molecules of two substances into their component atoms and rearrange them to make molecules of new substances. For example, explore how sulfur reacts with hydrogen to produce hydrogen sulfide. Work out the number of molecules of each substance needed to balance ...

Interactive Resource

Acid Base Reactions

Students use this resource consisting of eleven slides with diagrams, written explanation and voice-over to understand that different bases react with acids and how word and chemical equations summarise the reactions. There is a two-question quiz and a summary slide.

Moving Image

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.

Moving Image

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.

MovingImage

The Reaction of Metals with Acid

Students use this simulation to learn that react with hydrochloric acid to produce salt and hydrogen and find out how to test for hydrogen gas. The notice that sodium reacts violently and that magnesium reacts more quickly than zinc but that the hydrogen gas test is positive for both. Word equations are provided for all reactions.

Interactive Resource

Reaction of Metals with Acid

Students use this resource consisting of four slides with diagrams, written explanation and voice-over to understand that metals react with acid to produce salt and hydrogen and find out how to test for hydrogen gas. The reactivity series of metals is demonstrated. There is a two-question quiz and a summary slide.

Interactive Resource

Laptop Wrap: Chemical Equations

A page with a focus on completing and balancing chemical equations with supporting activities and links to resources.

Moving Image

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.

Interactive Resource

pH scale

Students use this resource consisting of eight slides with diagrams, written explanation and voice-over to understand that pH is a measure of the strength of an acid or alkali and how to interpret the colours of universal indicator solution. There is a two-question quiz and a summary slide.

Interactive Resource

Everyday Neutralisation Reactions

Students use this resource consisting of nine slides with diagrams, written explanation and voice-over to understand everyday neutralisation reactions. There is a two-question quiz and a summary slide.

MovingImage

Structures and Bonding

This simulation allows students to explore the chemical reactions between hydrogen, oxygen, carbon, nitrogen and chlorine. They can form water, carbon dioxide, hydrochloric acid, ammonia and methane. Word and chemical equations are provided. The diagrams distinguish single, double and triple bonds and shapes of molecules.

Interactive resource

Photosynthesis builder

Create a presentation that demonstrates what you know about the photosynthesis process, both during the day and at night. Select and position appropriate images and symbols, add text and save your presentation.

Collection

Flow of energy and matter in ecosystems: collection

This is a collection of 17 digital curriculum resources that support teaching and learning about the flow of energy and matter in ecosystems. The collection comprises seven teacher resources that include activities for investigating ecosystems, and ten learning strategies. The strategies include concept mapping, brainstorming, ...