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6th Grade Science - Miss. Sommer @ Edison Elementary

Hypothesis an intelligent guess made before an investigation
Theory an assumption based upon gathered information
Constants all the things that must be kept the same to make an experiment fair and valid
Independent Variable the one thing an experimenter changes in an experiment
Dependent Variable the result the experimenter is looking for
Controlled Experiment experiment with only one independent variable
Mean a number found by calculating the sum and then dividing by the number of figures in a set of data
Mode the number that occurs most often in a set of data
Energy the ability to do work or cause change
Potential Energy energy from position or condition
Kinetic Energy energy from motion
Cycle a series of steps that repeats
Force a push or pull
Friction a force that acts to oppose sliding between two surfaces that are touching
Speed distance divided by time
Matter anything that has mass, takes up space; can be a solid, liquid or gas
Mass the amount of matter in an object
Weight a measure of how hard gravity pulls on an object
Gravity a pull toward the center of an object
Inertia the tendency of an object to resist a change in motion
Momentum a measure of how hard it is to stop an object (depends on the object's mass and velocity)
Velocity speed and direction of a moving object
Newton's First Law an object at rest will stay at rest, an object in motion will stay in motion, in a straight line, at a constant speed unless some force acts upon it
Newton's Third Law states that forces act in equal but opposite pairs OR for every action there is an equal but opposite reaction
Volume the amount of space occupied by an object
Meniscus the bottom of the curved surface of a liquid in a graduated cylinder
Density mass divided by volume
Displace to push out of the way
Buoyant force upward force exerted by a fluid on any object in that fluid
Archimedes Principle the buoyant force on an object is equal to the weight of the fluid it displace
Fulcrum the point on which a lever turns
Created by: missommer