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What is Ocean Acidification? Gr. 7-12

Secondary, Middle

Description

The What is Ocean Acidification? research feature provides teachers with background information and climate science focused on the impact of ocean acidification on marine ecosystems and coastal economies. It explores how increasing atmospheric carbon dioxide, primarily from human activity, is lowering ocean pH and reducing the availability of calcium carbonate—a key building block for shellfish. The resource highlights research conducted by scientists studying the link between ocean chemistry, shellfish population declines, and the socioeconomic effects on Atlantic Canadian communities that depend on shellfish fisheries.

Students will:

  • explore the causes and consequences of ocean acidification through a hands-on investigation

  • conduct an experiment comparing the effects of acidic, neutral, and basic solutions on shellfish shells

  • analyze data and pH levels to draw conclusions about how acidification affects marine species

  • discuss how ocean acidification impacts both ecosystems and human livelihoods

  • consider future questions and reflect on real-world climate resilience strategies in coastal regions

The resource provides a practical, inquiry-based activity aligned with Canadian curriculum, background information for educators, student worksheets, and discussion questions to enhance understanding of climate science, chemical reactions, and the interconnectedness of environment and economy.

General Assessment

Recommendation of how and where to use it

This resource is part of a collection of research features which bring local climate change research into the classroom and enable teachers to integrate climate change research into their classrooms through fun, engaging and accessible research topics. 

Discover Our Climate resources are relevant to Atlantic Canada and include curriculum-based learning activities designed for grades seven to twelve. Each feature encourages students to be curious and create solutions for the on-going climate challenges we face.

Relevant Curriculum Units

The following tool will allow you to explore the relevant curriculum matches for this resource. To start, select a province listed below.

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  • Alberta
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    • Grade 8
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      • Science
        • Step 4Relevant matches
        • Freshwater and Saltwater Systems
    • Grade 9
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      • Science
        • Step 4Relevant matches
        • Biological Diversity
        • Knowledge and Employability Science: Biological Diversity (Social and Environmental Contexts Emphasis)
        • Knowledge and Employability Science: Environmental Chemistry (Social and Environmental Contexts Emphasis)
  • British Columbia
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    • Grade 10
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      • Science
        • Step 4Relevant matches
        • Energy change is required as atoms rearrange in chemical processes.
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      • Environmental Science
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        • Environmental Science 11: Human practices affect the sustainability of ecosystems
  • Manitoba
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      • Science
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        • Water Systems on Earth
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        • Earth Science
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        • Senior 2 Science: Dynamics of Ecosystems
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        • Science 9 Ecosystem Dynamics: Learning and Living Sustainably
        • Science 9 Ecosystem Dynamics: Scientific Literacy
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        • Science 10 Science for Sustainable Societies: Scientific Literacy
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      • Environmental Science
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        • Introduction to Environmental Science 120: Investigating Environmental Issues
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        • Science 1206: Sustainability of Ecosystems
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        • Environmental Science 3205: Water Use & the Environment
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        • World Geography 3200/3202: Ecosystems
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      • Science
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        • Energy change is required as atoms rearrange in chemical processes.
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      • Environmental Science
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        • Environmental Science 11: Human practices affect the sustainability of ecosystems
  • Nova Scotia
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        • Science 8: Climate Change
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        • Science 10: Sustainability of Ecosystems
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        • AP Environmental Science: Global Change
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        • Chemistry and the Environment
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        • Knowledge and Employability Science: Environmental Chemistry (Social and Environmental Contexts Emphasis)
        • Knowledge and Employability Science: Matter and Chemical Change (Nature of Science Emphasis
  • Ontario
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    • Grade 9
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        • :Biology: Sustainable Ecosystems
        • STEM Skills, Careers, and Connections
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        • Science (Academic):Chemistry: Chemical Reactions
        • Science (Academic):Earth and Space Science: Climate Change
        • Science (Applied)::Chemistry: Chemical Reactions and Their Practical Applications
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      • Environmental Science
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        • Environmental Science (Univ/College Prep.) Scientific Solutions to Contemporary Environmental Challenges
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        • Forces of Nature: Physical Processes and Disasters (Univ./College Prep.): The Physical Environment: Sustainability and Stewardship
        • Introduction to Spacial Technologies: (Open):Using Spacial technologies to Support Sustainability and Stewardship
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      • Geography
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        • The Environment & Resource Management (Univ./College Prep) : Ecological Systems: Interactions and Interdependence
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        • Science 9: Procedural Knowledge
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        • Science 431A: Life Science, Sustainability of Ecosystems
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        • Environmental Science 621A: Natural Resources
  • Quebec
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  • Saskatchewan
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        • Science 8: Water Systems on Earth
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        • Science 10: Chemical Reactions
        • Science 10: Climate and Ecosystem Dynamics
  • Yukon Territory
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        • Step 4Relevant matches
        • Chemical processes require energy change as atoms are rearranged
    • Grade 11
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      • Environmental Science
        • Step 4Relevant matches
        • Environmental Science 11: Human practices affect the sustainability of ecosystems

Themes Addressed

Air, Atmosphere & Climate (1)

  • Climate Change

Ecosystems (1)

  • Biodiversity

Land Use & Natural Resources (1)

  • Fisheries

Water (1)

  • Marine Environments