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CONTEXT 1 - Science
Agents for change - Context 1
| Albedo | The measure of how much sunlight a surface reflects compared to how much it absorbs. It is expressed as a percentage or a fraction. A high albedo (like snow or ice) reflects most sunlight, while a low albedo (like dark soil or water) absorbs more |
| Carbon Cycle | The movement of carbon - in CO, and other compounds - between atmosphere, land and water |
| Conservation | The protection, preservation, and sustainable management of natural resources and ecosystems to prevent depletion, biodiversity loss, and environmental degration |
| Data Layer | A structured data layer storage system that collects, organises, transfers information between different parts of a digital system, such as websites or applications to improve tracking, analytics and functionality. |
| Electricity | The flow of electric charge, usually through a conductor like a wire, used to power devices and produce light, heat, and motion |
| Neurtilistaion | A chemical reaction between an acid and a base to produce a salt and water, typically resulting in a balanced pH |
| Ozone | A gas composed of three oxygen atoms. It exists in the Earth's stratosphere, where it forms the ozone layer that protects life by absorbing harmful UV radiation, and at ground level, where it can be a pollutant harmful to health |
| Pollution | The introduction of harmful substances or contaminants into the environment, affecting air, water, or land and causing damage to ecosystems and human health |
| Resource | A resource is a natural or artificial substance or material that is useful to organisms or humans, such as water, minerals, or energy sources. |
| Sankey Diagram | A flow chart that uses arrows of varying widths to visually represent the proportions of energy, material, or cost transfers within a system |
| Transformation | The process of changing energy from one form to another, such as converting chemical energy in food into kinetic energy for movement |
| Photosynthesis | The process by which plants algae and some bacteria use sunlight, carbo dioxide and water to produce glucose and oxygen, providing energy for growth and development |
| Respiration | The biological process in which organisms convert oxygen and glucose into energy, releasing carbon dioxide and water as byproducts |
| Decomposition | A reaction in which a single compound breaks down into two or more simpler substances, usually due to heat, light, or a chemical catalyst. |
| Slow carbon cycle | The slow carbon cycle moves carbon between rocks, soil, oceans, and the atmosphere over millions of years through geological and chemical processes like weathering and tectonic activity. |
| Fast carbon cycle | Plants take CO from the air during photosynthesis, store it in their tissues as they grow, and return some of it to the air through respiration and when they die. |
| Solar radiation | The electromagnetic energy emitted by the Sun, including visible light, ultraviolet, and infrared radiation |
| Infrared radiation | A type of electromagnetic wave with wavelengths longer than visible light but shorter than microwaves, primarily associated with heat energy |
| Greenhouse gases | Water vapour, carbon dioxide, methane, and nitrogen |
| Carbon footprint | The total amount of greenhouse gases, mainly carbon dioxide, emitted directly or indirectly by an individual, organization, or activity |
| Carbon sink | Places that lock carbon away, preventing or delaying its release to the atmosphere |
| Carbon source | Something that generates or releases carbon-containing gases to the air. |
| Greenhouse effect | The process by which Earth's atmosphere traps heat from the Sun, keeping the planet warm. Greenhouse gases like carbon dioxide and methane absorb and re-radiate heat, preventing it from escaping into space |
| Enhanced greenhouse effect | The increase in Earth's temperature due to human activities, such as burning fossil fuels and deforestation, which add extra greenhouse gases to the atmosphere. This traps more heat and leads to global warming and climate change. |
| Combustion | A chemical reaction in which a substance burns in oxygen, releasing heat, light, and gases like carbon dioxide. |
| Transformation | The process of changing energy from one form to another, such as converting chemical energy in food into kinetic energy for movement. |
Created by:
ataub22
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