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DeLeon APES

Definitions

TermDefinition
Environment The surroundings and conditions in which a plant, animal, or person lives or operates.
Environmental Science The study of how humans interact with the environment, including the impact of natural and human-made systems on ecosystems, resources, and sustainability
Ecosystem All living things and their environment interacting as a system.
Biotic Living parts of an ecosystem, like plants, animals, and microbes.
Abiotic Non-living parts of an ecosystem, like sunlight, water, air, and soil.
Environmentalist A person who works to protect the environment and promotes conservation.
Ecosystem service A benefit that humans get from nature, like clean water, pollination, and air purification.
Biodiversity Variety of living species in an ecosystem, including plants, animals, and microorganisms.
Genetic diversity Variety of genes within a species, which helps populations adapt and survive.
Species A group of organisms that can breed and produce fertile offspring.
Species diversity Number and variety of different species in an ecosystem.
Speciation Process by which new species form from existing ones.
Greenhouse gases Gases in the atmosphere, like carbon dioxide and methane, that trap heat and warm the Earth up.
Anthropogenic Caused by human activity, such as pollution or deforestation.
Sustainability Using resources in ways that meet current needs without harming future generations.
Biophilia Human tendency to connect with and value nature and living things.
Ecological footprint Amount of natural resources a person or population uses compared to what the Earth can renew.
Hypothesis
Control group Group in experiment that does not receive test treatment, so used for comparison.
Sample size Number of subjects or observations in a study; larger sizes give more reliable results.
Replication Repeating an experiment to confirm results and reduce error possibility.
Theory Well-tested explanation of natural events, supported by evidence and observations.
Surface tension Tightness of water's surface caused by hydrogen bonds between molecules.
Capillary action Ability of water to move upward through small spaces, due to cohesion and adhesion.
Acid Substance that increases hydrogen (H+) in a solution, with a pH below 7.
Base Substance that reduces hydrogen ions (H+) or adds hydroxide ions (OH-) in a solution, with a pH above 7.
pH A scale (0-14) that measures how acidic or basic a solution is.
Chemical reaction Process where substances change into new substances with different properties.
Law of conservation of matter Matter cannot be created or destroyed, only transformed from one form to another.
Carbohydrate Nutrient made of carbon, hydrogen, and oxygen that gives energy, like sugars and starches.
Protein Nutrient made of amino acids that builds and repairs tissues and supports body functions.
Lipid Nutrient, like fats or oils, that stores energy and makes up cell membranes.
Nucleic Acid A molecule, like DNA or RNA, that stores and transmits genetic info.
DNA/RNA Molecules that carry genetic info; DNA stores information, RNA helps makes proteins.
Renewable Energy Energy from sources that are naturally replenished, like sunlight, wind, and water.
Chemical Energy Energy stored in the bonds of molecules that can be released during chemical reaction.
First Law of Thermodynamics Energy cannot be destroyed or created, only transformed from a form to another,
Second Law of Thermodynamics In any transfer, some energy is lost as heat, increasing system's disorder (entropy).
Created by: user-1973526
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