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Off Base


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    NOAA

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Off Base

In this activity, learners explore the factors that tend to resist changes in pH of the ocean and why the ocean is becoming more acidic. This lesson guides inquiry into some properties of the ocean’s carbonate buffer system, and how changes in atmospheric carbon dioxide levels may affect ocean pH and biological organisms that depend upon calcification. This lesson was first created for the 2008 Deepwater Coral Expedition: Reefs, Rigs, and Wrecks, but has been updated in 2009 to include recently published information.

Quick Guide


Preparation Time:
30 to 45 minutes

Learning Time:
1 to 2 hours

Estimated Materials Cost:
Over $20 per group of students

Age Range:
Ages 14 - 18

Resource Types:
Activity, Experiment/Lab Activity, Lesson/Lesson Plan

Language:
English

Materials List (per group of students)


Subjects


  • Earth and Space Science
    • Earth Processes
      • Weather and Climate
    • Earth Structure
      • Oceans and Water
      • Atmosphere
  • Life Sciences
    • Diversity of Life
      • Plants
      • Animals
    • Ecology
      • Ecosystems
      • Human Impact
  • Mathematics
    • Algebra
      • Equations and Inequalities
    • Data Analysis and Probability
      • Data Analysis
      • Data Collection
      • Data Representation
    • Problem Solving
    • Reasoning and Proof
    • Representation
  • Physical Sciences
    • Chemistry
      • Chemical Reactions
      • Acids and Bases
      • Chemistry of Life
      • Solutions
    • Structure and Properties of Matter
      • Elements and Periodic Table
      • Elementary Particles and Nuclear Physics
  • The Nature of Science
    • Science and Society
      • Risks and Benefits
    • The Scientific Process
      • Conducting Investigations
      • Gathering Data
      • Formulating Explanations
      • Communicating Results
  • The Nature of Technology
    • Technology and Society
      • Technology and the Environment

Informal Categories


  • Animals
  • Nature and Environment

Audience


To use this activity, learners need to:

  • see
  • see color
  • read
  • touch

Learning styles supported:

  • Involves teamwork and communication skills
  • Involves hands-on or lab activities

Other


Includes alignment to state and/or national standards

Includes assesments for student learning

This resource is part of:

Access Rights:

  • Free access

By:

  • Office of Ocean Exploration, NOAA

Rights:

  • All Rights Reserved, NOAA,

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