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Science Vocabulary

vocab

TermDefinition
Abiotic Factor The part of the ecosystem that is not alive and has never been alive
Adaptation A characteristic that helps an organism survive in its environment
Algae A simple plant-like organism that is food for many water organisms
Biome A plant and animal community that covers a large part of the Earth
Biotic Factor The part of an ecosystem that is alive
Canopy The large leaf layer in the forest biomes created by overhanging leaves and branches.
Carbon Cycle The movement of carbon from the environment into living things and back into the environment
Carnivores An organism that eats only other consumers
Community A group of organisms living together in a certain area
Consumers An organism that survives by eating producers or other consumers in its ecosystem
Deciduous Forest A forest biome with many kinds of trees that lose their leaves each autumn
Decomposers An organism, such as bacteria or fungus, that breaks down dead matter and returns nutrients to the soil
Deforestation An organism, such as bacteria or fungus, that breaks down dead matter and returns nutrients to the soil
Desert lAn area that gets less than 25 centimeters of precipitation each year, making it VERY dry
Ecology The study of how living things interact with one another and their environment
Ecosystem All the living and nonliving things in an area and their interactions
Estuary A body of water where fresh water and salt water ecosystems merge together
Fauna The animal life in an area
Flora The plant life in an area
Food Chain The order in which animals feed on plants and other animals (shows how energy flows from producer-consumer-decomposer)
Food Web Many food chains put together to show how energy flows through the ecosystem
Grasslands A biome whose main plants are grasses
Habitat The place and surroundings where an organism normally lives
Herbivores An organism that eats only plants
Host A living organism on which a parasite lives
Limiting Factor Something in an environment that keeps the population of an organism from increasing as much as it could
Niche The habitat that supplies everything needed for a species or an organism to survive The role that an organism plays in its environment
Nitrogen Cycle The continuous series of processes in which nitrogen passes from the air into the soil, then into an organism, and then back into the air
Omnivores A consumer that eats both plants and meats
Parasite An organism that lives in or one another organism (host)
Photosynthesis The process by which green plant cells make food from sunlight, water, and carbon dioxide
Pollutant A substance that spoils, dirties, or damages some aspect of the environment
Pollution Occurs when harmful pollutants are put into the environment and can cause harm
Population All the members of one species that live in one area
Predator An animal that hunts, kills, and eats other animals
Prey An animal that is hunted, killed and eaten by a predator
Producer An A flat or slightly rolling plain with few trees and permanently frozen groundorganism that can make its own food
Rainforest A hot, humid biome near the equator with much rainfall and a wide variety of life. The soil in this biome is not very fertile because of all the many plants taking the nutrients from the soil
Recycle The breaking down of products into raw materials that can be used to make new products
Respiration Occurs in animals and plants - energy is released from sugar (glucose) by a series of chemical reactions. The sugar is broken down into carbon dioxide and water in a process which uses oxygen
Temperate Mild
Taiga A cool forest biome in the Northern Hemisphere that has mostly conifer trees
Tundra A flat or slightly rolling plain with few trees and permanently frozen ground
Watercycle The continuous circulation of water between the Earth’s surface and the atmosphere
Created by: Tony1_Savage