8th grade Review2010
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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| individual | an single organism
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| population | all of the same species of an organism living a certain area, like all the deer
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| community | all of the different species of organisms living in a certain area
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| ecosystem | all of the organisms and non-living objects in a certain area
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| biotic | living
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| abiotic | non-living
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| producer | an organism that uses the sun to make its own food, it is at the bottom of an energy pyramid
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| primary consumer | an organism that eats plants, a herbivore
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| secondary consumer | an organism that eats other animals, a carnivore
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| decomposer | an organism, like bacteria, that eats and breaks down dead organisms
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| photosynthesis | the process of a plant making its own food; it take sin carbon dioxide and releases oxygen
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| homozygous | when the genes are both dominant or recessive, like TT or tt
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| heterozygous | when the genes are a mix of dominant or recessive, like Tt
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| phehotype | the external characteristics of an organism that are produced by a combination of genes, like blue eyes or curly hair
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| genotype | the genes that make up a characteristics, like Tt or tt
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| food web | a diagram that shows the feeding relationships between all the organisms in an area
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| energy pyramid | a diagram that shows how energy transfers between different organisms
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| density formula | D= M/V
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| density | the amount of matter or number of particles in an object
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| kinetic energy | energy of motion
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| potential energy | stored energy
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| mass market | many copies of the same item produced for the general population
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| niche market | a product made for a specific audience
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| physical change | a change in form or appearance of an object but not its composition, such as ice melting
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| chemical change | a change in an substance caused by a reaction; it creates a new substance
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| reactants | the molecules/atoms that are mixed in a chemical reaction
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| product | what is produced by a chemical reaction
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| compound | atoms that are bonded together and can't be split
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| substance | matter that has the same chemical composition throughout
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| mixture | a combination of elements and compounds that has not formed a new substance; can be separated out
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| melting | a change in the state of matter of an object, as from ice to water
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| newton's first law of motion | an object at rest will stay at rest AND an object in motion will stay in motion UNLESS an outside force acts on it
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| newton's third law of motion | for every action, there is an equal an opposite reaction
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| newton's second law of motion | the greater the mass of an object, the greater the force needed to accelerate that object
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| law of conservation of mass | mass is neither created nor destroyed; we can demonstrate this with a balanced equation
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| friction | a forces that acts to slow down the movement of an object
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| gravity | the force that pulls all objects towards the center of a planet
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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.
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.
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:
tbasci
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