Reaction rates - Year 10 CLE

Reaction rates - Year 10 CLE
Publication Date: September, 2015
Type of Resource: Practical activity/investigation

This online resource is a Connected Learning Experience to assist Year 10 teachers teach the concept of reaction rates to their students.


Description: In this investigation, factors which affect reaction rates are investigated by conducting experiments. Students can then use their knowledge and understanding of reaction rates to take on the role of a process chemist charged with controlling the time taken for a specific reaction to take place.


Learning intentions


Students will be able to:


  • observe and understand that chemical reactions take place at different rates;
  • identify factors which can affect reaction rates;
  • explain the effect of surface area, concentration and temperature on reaction rate;
  • plan appropriate investigation methods to manipulate the rate of a chemical reaction, taking account of fair testing;
  • make careful and accurate observations;
  • make predictions based on scientific understanding;
  • construct graphical representations of data and use these to determine relationships between variables; and
  • construct conclusions based on evidence.

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Additional Information

The Connect Learning Experience Resource


A Connected Learning Experience (CLE) is a resource package designed to support the use of inquiry investigations in the classroom.  


Each CLE may not encompass all the concepts and skills addressed in the specific content descriptions outlined by the Australian Curriculum: Science for that year level.  The Learning Intentions clearly define the aims and objectives of the CLE.


Year 10 Achievement Standard


This lesson sequence provides opportunities to gather information about students’ achievement of specific components in the standards


By the end of Year 10, students analyse how the periodic table organises elements and use it to make predictions about the properties of elements. They explain how chemical reactions are used to produce particular products and how different factors influence the rate of reactions. They explain the concept of energy conservation and represent energy transfer and transformation within systems. They apply relationships between force, mass and acceleration to predict changes in the motion of objects. Students describe and analyse interactions and cycles within and between Earth’s spheres. They evaluate the evidence for scientific theories that explain the origin of the universe and the diversity of life on Earth. They explain the processes that underpin heredity and evolution. Students analyse how the models and theories they use have developed over time and discuss the factors that prompted their review.


Students develop questions and hypotheses and independently design and improve appropriate methods of investigation, including field work and laboratory experimentation. They explain how they have considered reliability, safety, fairness and ethical actions in their methods and identify where digital technologies can be used to enhance the quality of data. When analysing data, selecting evidence and developing and justifying conclusions, they identify alternative explanations for findings and explain any sources of uncertainty. Students evaluate the validity and reliability of claims made in secondary sources with reference to currently held scientific views, the quality of the methodology and the evidence cited. They construct evidence-based arguments and select appropriate representations and text types to communicate science ideas for specific purposes.


Relevant prior curriculum knowledge


Science / Year 9 / Science Understanding / Chemical Sciences


Content description


Chemical reactions involve rearranging atoms to form new substances; during a chemical reaction mass is not created or destroyed (ACSSU178)


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

Australian Curriculum:
  • Year 10 > Science Inquiry Skills > Communicating > Communicate scientific ideas and information for a particular purpose,... > ACSIS208
  • Year 10 > Science Inquiry Skills > Planning and conducting > Plan, select and use appropriate investigation types, including field work and... > ACSIS199
  • Year 10 > Science Inquiry Skills > Planning and conducting > Select and use appropriate equipment, including digital technologies, to... > ACSIS200
  • Year 10 > Science Inquiry Skills > Processing and analysing data and information > Analyse patterns and trends in data, including describing relationships between... > ACSIS203
  • Year 10 > Science Inquiry Skills > Processing and analysing data and information > Use knowledge of scientific concepts to draw conclusions that are consistent... > ACSIS204
  • Year 10 > Science Inquiry Skills > Questioning and Predicting > Formulate questions or hypotheses that can be investigated scientifically > ACSIS198
  • Year 10 > Science Understanding > Chemical Sciences > Different types of chemical reactions are used to produce a range of products... > ACSSU187