Stack #32189
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Constant | factors in an experiment that stay the same
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| Control | the standard for comparison, often the group that receives no iv
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| dependent variable | responding; the variable that changes as a result of the iv
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| independent variable | manipulated; that variable that changes as a result of the iv
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| hypothesis | make a prediction stating the effect of the iv on the dv
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| manipulated variable | iv
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| responding variable | dv
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| volume | the amount of space occupied by an object
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| metric unit for volume | liter or cm3
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| mass | amount of matter; different than weight
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| metric unit for mass | gram
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| length | measures distance
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| metric unit for length | meters
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| weight | the gravitional pull on an object
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| metric unit for weight | newton
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| density | amount of matter packed into a given volume
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| metric unit for density | g/cm3
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| 50 cm = ___ m | 0.5
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| 25 cm = ___ dm | 2.5
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| 2.5 Km = ____ m | 2,500
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| 100 g = ____ mg | 100,000
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| 1000.25 cg = ___ hg | 0.100025
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| 3 dl = ___ ml | 300
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| 1 cm3 = __ g = 1 ___ | 0 / mL
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| 50.84 L = ____ Kl | 0.05084
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| Archimedes Principle | the buoyant force of an object in a fluid is equal to the weight of the fluid displaced by the object
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| buoyancy | the ability of a fluid to exert an upward force on an object
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| Bernoulli's Principle | as the velocity of a fluid increases, the pressure exerted by a force decreases
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| Venturi Effect | the faster a fluid moves, the less pressure it exerts (through narrow spaces)
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| Boyle's Law | If you decrease the volume of a container, the pressure of the gas will increase, provided the temperature doesn't change
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| Charles' Law | the volume of a gas increases with increasing temperature, provided the pressure does not change
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| Solid | definite shape and volume; tightly packed particles; not enough kinetic energy to move out of position; cannot be squeezed into smaller spaces
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| Liquid | definite volume; no definite shape; takes to the shape of their container; particles held close together; can move over and around each other; cannot be squeezed into a smaller place
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| Gas | no definite shape; no definite volume; particles have enough kinetic energy to separate completely from each other; can be squeezed into a smaller space
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| Plasma | exists only at very high temperatures; eletrically charged particles; 99.9% of the universe
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| Condensation | gas to liquid; temperature down
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| evaporation | liquid to gas; at temperatures below freezing; temperature up
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| vaporization | boiling at or above the boiling point
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| fusion | solid to liquid; melting; temperature up
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| solidification | liquid to solidl; freezing; temperature down
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| ionization | gas to plasma; temperature up
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| recombination | plasma to gas; temperature down
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| thermal expansion | almost all matter expands when heated and contracts when cooled
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| cyrstal | the arrangement of particles in repeating geometric patterns
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| kinetic theory of matter | all matter is made up of tiny particles in constant motion
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| physical changes | changes in matter that does not change its identity
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| chemical changes | the change of one substance in a material into another substance
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| physical properties | any characteristic you can observe without changing the substance
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| chemical properties | a characteristic of a substance that indicates if it can undergo a certain chemical change
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| heterogeneous mixture | an unevenly mixed mixture such as pizza
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| examples of heterogeneous mixtures | colloids or suspensions
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| homogeneous mixture | an evenly mixed solution such as rubbing alcohol
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| Law of Conservation of Mass | no mass is created nor destroyed during a reaction
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| unsaturated solution | a solution that can dissolve more solute at a given temperature
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| saturated solution | a solution that has dissolved all the solute that it can hold at a given temperature
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| supersaturated solution | a solution that contains more solute than it can hold when the temperature is dropped
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| solute | the susbtance being dissolved or broken down
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| solvent | the substance that dissolves the solute
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| solubility | the amount of solute that will dissolve in a solvent at a given temperature
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| atomic number | number of protons; number of electrons
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| atomic mass number | atomic weight; protons + nuetrons
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| chemical symbol | abbreviation of an element
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| nucleus | contain the protons and nuetrons
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| proton | positively charged particle found in the nucleus of the atom
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| nuetron | negatively charged particle found in the nucleus of the atom
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| electron cloud | the energy levels that form around the nucleus
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| electrons and their arrangement | electrons closest to the nucleus have less energy than electrons further from the nucleus; energy shell's max. electrons are 2, 8, 18, 32, 50, 72, 98
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| group / family | vertical columns on the PT; this number is that same as the # of electrons in the outer energy level
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| period | row on the PT; tells the # of electron shells
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| metal | elements to the left of the stair step line; solids at room temp; shiny; ductile; malleable; good conductors
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| nonmetal | elements to the right fo the stair step line; gases at room temp.
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| metalloid | located along the stair step line; contains properties of both metals and nonmetals
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| quark | inside each proton and nuetron; 3 in each P or N
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| isotope | atoms of the same element that differ in the number of neutrons
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Created by:
larsenkm
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