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Grades 7-9 Activity Guide

Climate Change in My Backyard Unit Descriptions

Unit 1: The Earth as a System

Unit 1 is divided into two sections that consider different Earth systems and how they interact. In 1A, students explore the Earth systems that create and affect climate including the Earth's energy balance and the greenhouse effect. They learn what the natural and human causes are of greenhouse gas emissions and explore how the sun's energy, greenhouse gases, and the Earth's surface interact to moderate global average temperature. They use a NASA data analysis tool to model different surface reflectivity and greenhouse gas scenarios. In 1B, students learn about the biosphere as a system. They explore how organisms interact with each other and their environment, how disturbances (such as climate change) can be felt throughout a food web. Finally, students learn about ecosystem services—the importance to humans of healthy, intact ecosystems.

Unit 2: Identifying the key changing conditions of the Earth system

In Unit 2, students learn about the difference between weather and climate. They then look at historical temperature cycles including paleoclimate data, more recent historical temperature changes, and current changes in temperature. They then expand the climate model beyond temperature to look at changes in precipitation and cloud cover in the United States. The unit continues by having students compare regional climate changes with overall global trends to identify similarities and differences in climate by region. Students recognize that climate change does not affect all areas of the globe equally or in the same ways. The unit concludes by having students write a persuasive essay using what they know about climate and ecosystem responses to climate change.

Unit 3: Earth system responses to natural and human-induced changes

In Unit 3, students learn about how living things and ecosystems respond to and are affected by changing climates. Students learn about how plant life-cycle events can be used to understand climate and how they have been used in the past. They participate in Project BudBurst, a national citizen science project, and study how changing climates impact the timing of plant life-cycle events. Students explore the impacts of changing climates on plant migration by calculating seed dispersal rates for a variety of plant species and predicting whether they will be able to migrate quickly enough to keep pace with changing climates. Lastly, students analyze phenology and "green up" data to draw conclusions about changing climates, and their effect on plants.

Unit 4: Predicting the consequences of changes for human civilization

In Unit 4, students learn that climate change affects people in different ways, that climate change has many types of impacts, and that these impacts are different for countries and people around the world. In a role-playing game, students take on the situations of people around the world who are being affected by changing climates in different ways. They then consider how their own personal actions contribute to climate change and investigate in more detail its specific impacts on ecological systems and human civilization. Students then choose a region of the world and investigate how this country or area has been affected. Students present their research to the class. The unit concludes with student reflections on what they have learned about climate change, how it has changed their attitudes, and whether they will make any personal changes as a result.