Science / Year 8 / Science Understanding / Chemical sciences

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Curriculum content descriptions

Chemical change involves substances reacting to form new substances (ACSSU225)

Elaborations
  • identifying the differences between chemical and physical changes
  • identifying evidence that a chemical change has taken place
  • investigating simple reactions such as combining elements to make a compound
  • recognising that the chemical properties of a substance, for example its flammability and ability to corrode, will affect its use
ScOT terms

Chemical reactions,  Molecular structure

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10 direct matches to ACSSU225 | 10 other related resources
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Follow the passage of food through the human body. Select foods and drinks and decide how to digest them. For example, choose to chew, to add saliva to the mouth or add gastric juices to the stomach. Watch how the body reacts to changes. Find out more about digestion along the way and answer questions.

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Catalyst: Underground coal gasification

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How are scientists using technology to get energy out of coal without having to dig it up? Find out how underground coal gasification (UCG) burns and converts the coal to gas underground. Visit UCG trial sites in Queensland and hear how UCG avoids some of the environmental effects of traditional coal mining, but may have ...

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Solar Prints

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This 6 minute video segment from Catalyst is an excellent introduction to the science behind photovoltaics. A useful comparison of the efficiency of energy conversion. Discussion of other issues considered in producing devices to use renewable energy to make electricity.

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experiMENTALS: Bubble 07 diversion grenades

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This resource contains a materials and instruction list and brief explanation for students about the process of carrying out a chemical reaction between bicarbonate of soda and vinegar.

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experiMENTALS: Relightable candle

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This resource contains a materials and instruction list and brief explanation for students about the process of relighting a candle. This activity is most likely to be done as a teacher demonstration for safety and classroom management reasons, particularly at primary school level. Do this experiment to learn how a candle ...

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DIY pH Indicator

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This resource contains lessons plans containing instructions and teachers 'notes for an activity based on the natural pH indicator present in red cabbage leaves. It can be extracted following these explicit and clear directions included for this activity. This indicator solution changes colour from purple to bright pink ...

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experiMENTALS: Energy in soft drinks

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This resource contains information about how to calculate the amount of sugar and number of kilojoules in soft drink and fruit juices and brief explanation for students the effect of consuming too much sugar.

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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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Elliot and the Surfing Scientist: Making a mini-rocket

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Have you ever seen someone create a rocket using a soft drink bottle? In this clip, Surfing Scientist Ruben Meerman attempts to 'supersize science'. You will find out how he made a model rocket and see slow-motion footage of the rocket as it shoots up into the sky.

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experiMENTALS: Magic rocking candle

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This resource contains a materials and instruction list and brief explanation for students about the process of burning both ends of a balancing candle. This activity is most likely to be done as a teacher demonstration for safety and classroom management reasons, particularly at primary school level.

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Energy chains: make electricity

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Graptolite fossils - item 1

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This is a colour photograph of graptolites fossilised in rock. These are specimens of 'Pendeograptus fruticosus'. The figures visible on the rock are cataloguing numbers.

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Southern gastric brooding frog

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This is a colour photograph of a preserved southern gastric brooding frog ('Rheobatrachus silus'). It is a museum specimen viewed from the front.

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Male and female thylacines, 1841

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This is a 36 cm x 55 cm hand-coloured lithograph of a pair of thylacines (‘Thylacinus cynocephalus’), commonly called Tasmanian tigers, against a background of small bushes and an open plain.

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Trilobite fossil

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This is a colour photograph of a fossil trilobite of the genus 'Kolihapeltis'.

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Zygomaturus fossil skeleton

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This is a colour photograph of a 'Zygomaturus tasmanicus' fossil skeleton. The skeleton is a museum specimen and has been braced with metal rods. It is displayed in a standing posture.

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Thylacine pup

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This is a colour photograph of a preserved underdeveloped thylacine pup ('Thylacinus cynocephalus'). It is a museum specimen preserved in a glass container. Museum cataloguing labels are visible.

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Graptolite fossils - item 5

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This is a colour photograph of a graptolite fossilised in rock. This species is 'Clonograptus persistens'.

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Oxygen molecule

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This is a colour image of a model of a molecule of oxygen, O₂. In this model, two oxygen atoms are represented by red spheres held together by grey rods that represent a double covalent bond.

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Hydrogen molecule

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This is a colour image of a model of a molecule of hydrogen, H₂. In this model, two hydrogen atoms are represented by grey-white spheres held together by a grey rod that represents a covalent bond.

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