8th Grade Science Unit 3 & 4
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| Abiotic factor | A nonliving parts of an ecosystem. | show 🗑
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| show | A characteristic that helps an organism survive and reproduce in its natural environment. | Giraffe’s neck, humming bird’s beak, lions claws & teeth etc…
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| Biodiversity | show | Hundreds of different types plants in one square mile of a rainforest- high biodiversity.
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| Biotic factor | Anything living in an ecosystem. | show 🗑
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| Carnivore | show | Lion, coyote, shark, snakes, owls, etc…
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| show | A disastrous event, natural or man-made that causes widespread damage or death. | Habitat destruction, pollution, development, overpopulation, war/ terrorism, etc…
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| Climax community | show | Forrest that has not be impacted by humans or catastrophic events
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| Community | All the different organisms (populations) that live together in an area. | show 🗑
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| Competition | show | Rams and deer fighting for mates, trees fighting for space,
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| show | An organism that cannot make its own food so it obtains energy by feeding on other organisms. | All animals: humans, deer, bear, rabbits
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| Decomposers | show | Bacteria and fungi are the most common decomposers.
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| Ecosystem | show | All the living animals in a forest interacting with the water, dirt, air, and temperature in the forest
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| Energy pyramid | A diagram that shows the amount of energy transferred from one feeding level to another in a food chain. | show 🗑
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| Environment | The surroundings of an organism. | show 🗑
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| Food chain | A series of events in which one organism eats another. | show 🗑
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| Food web | The pattern of overlapping food chains in an ecosystem. | show 🗑
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| show | An animal that eats only plants. | Rabbits, cows, zebras, giraffes, etc…
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| Light Quantity | show | The light reaching the ground in a field is greater than in a forest.
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| show | Resources which may limit the number of organisms supported by an ecosystem. | Food, water, soil, space, etc…
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| show | Random changes in genes that cause variations that can be helpful or harmful. | Extra digits, abnormal coloring, extra chromosomes, some diseases, etc….
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| Natural selection | The process by which organisms best adapted to their environment survive & reproduce to pass on favorable traits to their offspring. | show 🗑
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| Nutrients | show | Food, elements plants need, water, etc…
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| show | An animal that eats both plants and animals. | Bears, raccoons, humans, chimps, etc…
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| Organism | show | Plants, fungi, animals, bacteria, etc…
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| Population | All of the organisms of the same species that live in area at the same time. | show 🗑
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| show | An animal that eats plants in a food chain – an herbivore. | Occupies the second trophic level in an energy pyramid.
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| Producer | show | Plants.
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| Resources | show | Food, water, space, mates, etc…
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| Scarce | show | Water in a dessert.
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| Secondary Consumer | show | Occupies the third trophic level in an energy pyramid.
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| show | An area where an organism lives and competes for biotic and abiotic factors. | A bear’s in a forest competes for food with other animals in that space.
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| Species | show | Brown bears, grizzly bears, polar bear, American black bear, etc…
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| show | The difference between the average high temperature and average low temperature. | Temperatures in the Amazon Rainforest will be between 22C to 33C.
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| show | A predator that eats another animal in a food chain. | Occupies the fourth trophic level in an energy pyramid.
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| Tolerance | ability of an organism to endure unfavorable environmental conditions | show 🗑
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| show | The changing sequence of communities that live in an ecosystem during a given time period. | An environment starts simple with few organisms and diversifies over time to climax community.
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| Pioneer Species | First organisms to live in an area. | show 🗑
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| Primary Succession | A process that develops a biotic community in a previously uninhabited and barren habitat with little or no soil. | show 🗑
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| Secondary Succession | show | After a wildfire an environment must rebuild itself through secondary succession.
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| Environmental Impacts | show | Ex: flood, drought, volcanic eruption, deforestation, global warming, invasive species, etc...
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
kara.mabele
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