Contextualization

The advent of the Industrial Revolution brought about a significant change in terms of energy used in production. Previously, with the use of simple technologies, the energy sources used were human, animal, and eventually wind and water resources. However, with the need for large-scale production, it was necessary to seek new sources of energy. Thus, fossil fuels emerged - coal and later oil and natural gas.

Not all fuels are equal. They differ in terms of chemical composition, energy efficiency, pollution, and resources required for their production. There are renewable fuels, such as biogas, ethanol, biodiesel, and biomass, and non-renewable fuels, such as oil, coal, and natural gas. The burning of fossil fuels, unfortunately, releases carbon dioxide (CO2) and other greenhouse gases into the atmosphere, contributing to global warming.

Understanding these elements is essential to grasp the current global energy scenario and its implications for the environment. Knowing and differentiating the types of fuels, their applications, and impacts is the first step in establishing a sustainable path for the planet's energy future.

Fuels have played a fundamental role in the infrastructure and economy of countries. They are used to power vehicles, generate electricity, produce heat, among other applications. However, the burning of fuels, especially fossil fuels, has a significant impact on the environment. Greenhouse gas emissions resulting from the burning of fossil fuels are the main cause of climate change.

Understanding the different forms of energy and how they are transformed is crucial to comprehend the nature of energy production and the consequent need for better management and use of these resources. The study of fuels offers a unique opportunity for interdisciplinary learning, relating the knowledge of Science and Geography to explore the scientific, geological, economic, and environmental aspects associated with fuel use.

Practical Activity

Project Name: "Investigating Fuels and their Environmental Impact"

Project Objective

The objective of this project is to investigate the different types of fuels, their origin, their uses, energy efficiency, and the environmental impact they cause. In addition, students will develop a prototype of an ecological stove that uses biomass as fuel.

Detailed Project Description

This work should be carried out by groups of 3 to 5 students and will last approximately 2 weeks, totaling more than 12 hours of work per student.

The project will focus on four main blocks of activities:

1. Theoretical Research: Each student should research about a type of fuel: fossil fuels, biofuels, nuclear fuels, or hydrogen as fuel (each student in the group should research a different fuel). They must understand the extraction or production process, energy efficiency, main applications, and the environmental impact derived from its use.

2. Concept Map Development: As a group, they will create an interactive concept map with the researched information. This map should include images, brief summaries, and diagrams to help explain the concepts in an easy and didactic way.

3. Practical Experiment: Build a small ecological stove that uses biomass as fuel. Biomass that students can easily find at home, such as fruit peels, leaves, or coffee beans, could be used.

4. Final Report: Each group will create a project report in document format, which will contain four main topics: introduction, development, conclusions, and bibliography used.

Necessary Materials

1. Internet access for research.
2. Paper, pencil, markers, for creating the concept map.
3. Materials needed to create the ecological stove: empty soda can, aluminum foil, biomass of choice (fruit peels, coffee beans, dry leaves).
4. Free software for concept maps (example: Coggle, XMind).

Detailed Step-by-Step for Activity Execution

1. Theoretical Research

Each student must delve into one of the fuel types. They should seek to understand the production or extraction, energy efficiency, applicability, and environmental impact.

2. Concept Map Development

Students should gather (physically or virtually) to share the researched information and together create the concept map. They should make connections between the different study topics, facilitating the overall understanding of the subject.

3. Practical Experiment

Now it's time to put the acquired knowledge into practice. The group must build a small ecological stove that uses biomass as fuel. In this detailed step-by-step How to Make a Portable Wood Stove

4. Final Report

Finally, each group must create a final report, including all suggested points: introduction (with the contextualization of the theme, its relevance and real-world application, and the objective of this project); development (explaining the theory behind the central theme(s) of the project, activity explanation, indicating the methodology used, and finally presenting and discussing the results obtained); conclusion (revisiting the main points, explaining the learnings obtained, and the conclusions drawn about the project) and bibliography.

Project Deliverables

1. Digital Concept Map - All researched information must be properly organized and represented clearly and concisely.

2. Practical Experiment - A functioning ecological stove that uses biomass as fuel.

3. Final Report - The report should include: introduction (with the theme contextualization, its relevance and real-world application, and the project's objective); development (explicitly stating the theory behind the central theme(s) of the project, explanation of the activity, indicating the methodology used, and finally presenting and discussing the results obtained); conclusion (revisiting the main points, explaining the learnings obtained, and the conclusions drawn about the project) and bibliography.