review vocab for spring benchmark
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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adhesion | the tendency of water to stick to other substances
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atomic mass | the average mass number of all isotopes of an atom. Round this number to find the mass number of the atom.
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buoyancy | the ability of a fluid to exert an upward force on an object that is immersed in the fluid
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capilary action | the process that moves water through a narrow porous space
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cohesion | the attractive force between water molecules
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compound | a pure substance that is created by 2 or more elements chemically reacting and joining together.
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electron | subatomic particle with a negative charge and located outside the nucleus.
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element | A substance that cannot be broken down into simpler substances by ordinary chemical means.
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Law of Conservation of Mass | A law that states that matter cannot be created or destroyed during a chemical reaction. The mass of the reactants is equal to the mass of the reactants.
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Atomic mass | the average mass number of all isotopes of an atom. Round this number to find the mass number of the atom.
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polarity | uneven distribution of charges across a molecule
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surface tension | the force that acts on the particles at the surface of a material
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River Basin | the region of land drained by a river and its tributaries
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Watershed | the land area that supplies water to a river system
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Specific heat | the amount of energy needed to raise one gram of a substance by one degree Celsius
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Ductility | the ability to be stretched into a thin wire
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Malleability | the ability to be hammered into a sheet
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Solution | when one substance mixes with another and dissolves. Example: Salt + Water = Salt Water
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Element | A substance that cannot be broken down into simpler substances by ordinary chemical means
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Period | Elements that occur in a horizontal row on the periodic table
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Group | Elements that occur in a vertical column on the periodic table; also called a family.
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Metal | An element below and to the left of the stair-step line of metalloids; about 80% of the known elements are metals.
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Nonmetal | An element above and to the right of the stair-step line of metalloids.
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Metalloid | An element with properties of both metals and nonmetals located along the stair-step line on the right side of the periodic table.
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Compound | a pure substance that is created by 2 or more elements chemically reacting and joining together.
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Mixture | The physical combination of 2 or more substances; can be separated by physical means.
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Homogeneous mixture | A mixture that is evenly mixed; also called a solution.
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Heterogeneous mixture | A mixture that is unevenly mixed.
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Precipitate | an insoluble substance that is produced as result of a chemical reaction.
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Bioindicator | organisms or components of organisms that are used to assess the health of a water system
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Macro-invertebrate | small, spineless creatures that are visible with the unaided eye; they include organisms such as crustaceans, mollusks, worms, and insects
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pH scale | rating of how acidic or basic a substance is the scale goes from 0 to 14 with 7 being neutral values less than 7 being acidic and values greater than 7 being basic
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Nitrate | nitrogen compounds used for growth by plants and algae; a compound that can be used by photosynthetic life forms to obtain the nitrogen needed for survival
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Turbidity | a measure of the clarity of the water (how clear is it?)
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Non-point source pollution | pollution that comes from many places or sources that is not easily identified; pollution that results from water flow picking up trash, toxic chemicals, and other types of waste
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Point Source pollution | pollution that can be traced to a specific source such as oil that spills from a pipeline
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Scuba | Self-Contained Underwater Breathing Apparatus - device that allows divers to breathe underwater for long periods of time.
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SONAR | SOund NAvigation Ranging - used to measure ocean depth by sending sound to bounce off the ocean floor.
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Abiotic Factor | the non-living factors of the environment that an organism lives in.
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Benthos | organisms that live on or in the ocean floor.
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Biotic Factor | the living organisms of the environment.
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Consumer | - feed on other organisms (plant or animal) because they cannot make their own food.
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Estuary | body of water where a river meets the ocean
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Habitat | The immediate space where an animal or plant lives and has food, water and protection.
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Intertidal Zone | the area that lies between the low-tide and the high-tide line.
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Nekton | free-swimming organisms whose movements are independent of the tides, currents, and waves.
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Upwelling | the upward movement to the ocean surface of deeper, cold and usually nutrient-rich waters, especially along some shores, due to the offshore movement of surface waters
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Darwin | was a naturalist who proposed and provided scientific evidence that all species of life have evolved over time from common ancestors through the process he called natural selection.
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Fossil | evidence of past life preserved in rock.
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Index fossil | a fossil found in a narrow time range but widely distributed around the earth; used to date rock layers
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Natural selection | survival of the fittest organisms that are the best adapted to their environment and the ones that will live long enough to reproduce and pass on their favorable adaptations
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Trace fossil | a fossilized mark that is formed in soft sediment by the movement or actions of an animal.
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Trilobite | a marine organism that is an example of an index fossil
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Atomic number | the number of protons in the nucleus of an atom. This number identifies the atom.
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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.
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Created by:
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