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41 Cards in this Set
- Front
- Back
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cell
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The basic part of all living things. (p. 32)
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organism
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Any single living thing. (p. 32)
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kingdom
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One of five large groups into which scientists classify all organisms. (p. 34)
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nucleus
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1. The control center of a cell. (p. 37)
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protists
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A one-celled organism. (p. 36)
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fungus
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A plantlike living thing that does not contain chlorophyll. (p. 42)
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spore
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A single cell that can grow into a new organism (p. 44)
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moneran
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A one-celled organism that does not have a nucleus. (p. 48)
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bacteria
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Another name for monerans. (p. 48) Note: singular form = bacterium
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virus
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A thing that seems to be alive, but is not made of cells. (p. 51)
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invertebrates
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An animal that has no backbone. (p. 61)
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pore
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A small hole or opening in a sponge. (p. 65)
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parasite
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A living thing that lives on or in another living thing and harms the living thing on which it lives. (p. 69)
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mollusk
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An invertebrate that has a soft body. (p. 76)
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arthropod
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An animal with jointed legs, a segmented body, and a hard outer covering. (p. 80)
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sponge
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An animal that does not move from place to place and spends its life attached to a hard surface. All sponges have an outer body layer that has many pores. (p. 64)
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exoskeleton
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The hard outer covering of an arthropod. (p. 81)
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molt
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To shed the outer body covering. (p. 81)
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abdomen
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The rear part of an insect's body. (p. 85)
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thorax
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The middle part of an insect's body. (p. 85)
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matter
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Anything that has mass and takes up space. (p. 170)
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mass
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A measure of the amount of matter in an object. (p. 176)
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substance
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Something made of only one kind of matter. (p. 171)
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mixture
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Matter that contains two or more different substances. (p. 171)
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element
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A substance that cannot be broken down by simple means into any other substance. (p. 172)
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compound
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A substance made when two or more elements combine to form a new substance. (p. 172)
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atom
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The smallest particle of an element that has the chemical properties of the element. (p. 186)
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electron
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A particle that has a negative electric charge. (p. 187)
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proton
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A particle with a positive electric charge. (p. 187)
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neutron
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A particle that has no electric charge. (p. 187)
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molecule
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A group of atoms held together by one type of chemical bond. (p. 191)
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chemical property
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A trait that describes how one substance reacts with another substance. (p. 175)
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physical property
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A trait that can be observed or measured without changing the identity of the substance. (p. 175)
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atomic number
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The number of protons in one atom of an element. (p. 187)
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chemical symbol
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One or two letters that stand for the name of an element. (p. 192)
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formula
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A group of symbols that shows how many atoms of each element are in a molecule or in the smallest unit of a compound. (p. 193)
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state
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One way to classify matter (solid, liquid, gas). (p. 171) Note: Other ways to classify matter - substance or mixture. (p. 171)
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solid, liquid, gas
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The common states of matter. (p. 171)
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density
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A property related to mass. The measure of the mass of a certain volume of a substance. (p. 176)
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volume
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How much space a solid object occupies. (p. ???)
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chemical bond
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A force that holds two atoms together. (p. 191)
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