8th Grade Science Unit 3 & 4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Abiotic factor | show | Air, sunlight, soil, rocks, temperature, clouds, asphalt, dumpster, etc…
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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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| show | The variety of life in a particular habitat or ecosystem. | 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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| show | An animal that eats only meat from other animals. | Lion, coyote, shark, snakes, owls, etc…
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| Catastrophic event | show | 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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| show | Occurs when more than one individual or population tries to make use of the same resource. | 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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| show | An organism that breaks down dead organisms to recycle nutrients back into the environment. | 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 | show | All of the feeding relationships within a lake or a forest.
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| Herbivore | show | 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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| Limiting factors | show | Food, water, soil, space, etc…
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| Mutations | Random changes in genes that cause variations that can be helpful or harmful. | show 🗑
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| show | The process by which organisms best adapted to their environment survive & reproduce to pass on favorable traits to their offspring. | Brightly colored birds are more likely to attract mates so they reproduce causing all the birds to eventually be brightly colored.
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| show | Food or any nourishing substance required by organisms to live and grow. | Food, elements plants need, water, etc…
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| Omnivore | show | Bears, raccoons, humans, chimps, etc…
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| Organism | Any living thing. | show 🗑
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| show | All of the organisms of the same species that live in area at the same time. | All of the zebras living around a water source in Africa.
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| Primary Consumer | show | Occupies the second trophic level in an energy pyramid.
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| Producer | An organism that can make its own food, usually by converting sunlight into glucose (sugar). | show 🗑
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| Resources | show | Food, water, space, mates, etc…
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| Scarce | Restricted in quantity | show 🗑
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| show | An organism that feeds on herbivores in a food chain. | Occupies the third trophic level in an energy pyramid.
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| Space | An area where an organism lives and competes for biotic and abiotic factors. | show 🗑
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| Species | A group of similar organisms that can mate with one another and produce fertile offspring. | show 🗑
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| Temperature Range | The difference between the average high temperature and average low temperature. | show 🗑
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| Tertiary Consumer | A predator that eats another animal in a food chain. | show 🗑
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| Tolerance | show | Polar Bears have a cold tolerance due to their excess fat and adaptation of hibernation.
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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 | show | Primary: lichen, mosses, bacteria
Secondary: grass and weeds
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| show | A process that develops a biotic community in a previously uninhabited and barren habitat with little or no soil. | New environment or one affected by a large volcanic eruption. Usually starts with lichen.
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| show | A process started by an event that reduces an already established ecosystem to a smaller population of species. | After a wildfire an environment must rebuild itself through secondary succession.
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| show | Change in an ecosystem . Can last a few hours up to a permanent change. | 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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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.
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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