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Science

vocab

QuestionAnswer
speed rate of change of position
average speed found by dividing total distance traveled by time taken
instantaneous speed speed of an object at one instant of time
velocity speed and direction of a moving object
inertia tendency of an object to resist a change in its motion
momentum how difficult it is to stop a moving object
law of conservation of momentum total momentum of objects that collide doesn't change after the collision
chemical change produces chemical change, results in new substances
reactant substances that begin before a chemical reaction begins
product substances that form as a result of a chemical reaction
exothermic reaction chemical reaction in which heat energy is released
enzyme large protein molecules that speed up or slow down reactions, needed for your cells to work properly
troposphere atmospheric layer closest to earth, contains most weather and clouds
stratosphere located above the troposphere
mesosphere located above the stratosphere
thermosphere located above the mesosphere
ionosphere part of the thermosphere and mesosphere, reflects AM radio waves
Created by: kitkatharp
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