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30 Cards in this Set
- Front
- Back
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bias
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personal opinion
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constant
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variablethat does not change in an experiment
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control
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standard for comparsion in an experiment
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dependent variable
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factor being mearsued in an experiment
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Earth sience
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study of Earth and space including rocks, fossils, climate, volcanoes, land use, ocean, water, earthquakes, and objects in space
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ethics
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study of moral values about what is good or bad
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hypothessis
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an educated guess
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inpentdent variable
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factor that changesin an experiment
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science
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process of looking at and studying things in the world in order to gain knowledge
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scientific law
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rule that describes the behavior of something in nature; usually describes what will happen in a situation but not why it happens
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scientific methods
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problem-solving procedures that can include indentifying the problem or question, gathering information developing a hypothesis, testing the hypothesis,analyzing the results, and drawing conclusions
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scientific theory
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explanationthat is supported by results from repeated experimentation or testing
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technology
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use of scientific discoveries for practical purposes, making peoples lives easier and better
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variable
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different factors that can be changed in an experiment
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atom
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tiny building block of matter , made up protons, neutrons, and electrons
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atomic number
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the number of protons in an atom
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electron
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particle with a negative charge
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element
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substance that is made up of only one type of atom
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heterogeneous mixture
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a mixture which is not mixed
evenly and each componet retains its own properties |
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homogeneos mixture
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a mixture which is evenly mixed thruoghout
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ion
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electrically-charged atom whose charge results from an atom losing or gaining electrons
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isotope
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an atom of the same lement that have different numbers of neutrons
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mass number
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the number of protons plus the number of neutrons in an atom
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matter
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anything that has mass and taked up space
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mixture
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composed of two or more substances that are not chemically combined
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molecule
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a group of atoms connected by covalent bonds
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neutron
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particle without an electrical charge
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proton
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particle that has a positive electric chage
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solution
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a mixture which is evenly mixed thruoght also known as s homogeneous mixture
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