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23 Cards in this Set
- Front
- Back
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when measuring in the metric system, what instrument is used to measure
a) volume of a liquid b) mass c)length of a solid |
a) graduated cylinder
b) triple-beam balance c) ruler |
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what is the basic unit of measurement in the metric system for
a) length b) mass c) volume |
a)meter
b)gram c)liter |
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how do you determine total magnification when using a microscope
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multiply ocular lens magnification and total lens magnification
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what is science?
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a method of obtaining knowledge about nature
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what is an independent variable
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factor that will be manipulated during the experiment
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what is a dependent variable
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the factor that responds to your experiment(must reply on independent variable)
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what is a hypothesis
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a possible solution to your problem (must be testable)
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six steps of the scientific method
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state the problem
research form hypothesis experiment observe conclusion |
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differentiate between and experimental and control setup
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experimental- experiment that receives experimental treatment
control- part of an experiment that receives no experimental treatment |
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what is the importance of a control setup
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to make sure that the experiment is valid
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state three subatomic particles, their charge and their location within a cell
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proton-positive-nucleus
neutron-none-nucleus electron-negative-energy levels |
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how is the atomic number of a element determined
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number of protons in the nucleus
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what is the maximum number of electrons on the first four energy levels of an atom
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1-2
2-8 3-18 4-32 |
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differentiate between ionic bond and covalent bond
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ionic is the transfer of electrons
covalent is the sharing of electrons |
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how do you determine the mass number of an atom
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add protons and neutrons
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how does an atom become a stable atom
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by having the outermost energy level filled with the maximum number of electrons
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what is a ion
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when there are more protons than electrons or vice versa
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what is a mixture
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two or more elements or compounds not chemically combined
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what are the two parts of a solution
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solvent (liquid)
solute (solid) |
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differentiate between solvent and solute
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solvent is liquid
solute is a solid |
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what is the difference between acid and base
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acid releases positive hydrogen atoms
bases release negative hydrogen atoms |
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what is a suspension
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a mixture containing undissolved particles distributed within a solid liquid or gas
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differentiate between organic and inorganic molecules
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organic have carbon atoms and inorganic doesnt
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