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December 26, 2025

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Overview and Purpose

MACAN (the Mid-Atlantic Coastal Acidification Network) is a network of researchers, educators, decision-makers, industry representatives, policy experts, and federal, state, local, and tribal leaders whose mission is to advance knowledge and understanding of the effects of coastal and ocean acidification (COA) and promote regional collaboration to advance this knowledge.

This “Coastal Acidification in the Classroom” curriculum was created to provide teachers and students with ready-to-use resources and activities to explore ocean and coastal acidification.

Overview of the MACAN Curriculum for Teachers

This curriculum was developed by the Mid-Atlantic Coastal Acidification Network (MACAN) to help teachers bring coastal and ocean acidification into the classroom in clear, practical ways. It provides complete lesson plans, hands-on activities, and data-driven investigations that support student inquiry while aligning with Next Generation Science Standards (NGSS).

Designed for high school classrooms, the lessons can be taught as a full unit or selected individually to fit existing course needs.

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Next Generation Science Standards (NGSS)

How to Use This Curriculum

Curriculum Overview

Explore the Curriculum

Browse the curriculum lessons below to access complete lesson plans, labs, videos, and student materials.
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Section 1 - Curriculum Overview and MACAN Video Series

This section introduces the curriculum and key concepts in ocean acidification through background reading and short videos. It includes NGSS-aligned questions and transcripts that can be used in class or for flipped learning.

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Section 2 - The Carbon Cycle Game and CO2 Sources and Sinks

Students learn how carbon moves through Earth’s systems and how emissions affect atmospheric CO₂. An interactive game helps reinforce sources and sinks through hands-on participation.

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Section 3 - Introduction to Ocean Acidification: How does CO2 cause change in the pH of water?

Students explore how increased atmospheric CO₂ changes ocean pH and water chemistry. Demonstrations and guided activities help introduce the foundational processes behind ocean acidification.

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Section 4 - Chemistry of Ocean Acidification

Through hands-on lab activities, students investigate the chemical reactions that drive ocean acidification. These labs also introduce how changes in chemistry affect shell formation in marine organisms.

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Section 5 - Coastal Acidification

Students compare ocean and coastal acidification using data and infographics. The lesson emphasizes how estuaries and coastal waters experience different conditions than the open ocean.

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Section 6 - Biological Impacts of Ocean Acidification

Students examine data on Mid-Atlantic species to understand how decreasing pH affects growth, reproduction, and survival. They connect changes in chemistry to impacts on living organisms.

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Section 7 - Ocean Acidification and Bivalve Response

Students work individually and in groups to analyze data related to bivalve health. The lesson focuses on interpreting evidence and drawing conclusions about the effects of dissolved CO₂.

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Section 8: Part 1 - The Case of the Vanishing Scallops

This lesson engages students in investigating declining bay scallop populations while exploring the scientific method and experimental design. Students analyze data, build critical thinking skills, and examine coastal acidification’s impacts on biological species.

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Section 8: Part 2 - The Case of the Vanishing Scallops

In Part 2, students apply the scientific method to investigate the bay scallop mystery by reviewing key steps, conducting research, developing hypotheses, and designing experiments to guide their inquiry.

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Get Involved

If you are interested in learning more about MACAN and the work we do, please sign up for our monthly newsletter. You can also read our 2024 to 2028 Work Plan.

 

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The Mid-Atlantic Coastal Acidification Network. All Rights Reserved.