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a substance or object that allows energy to flow through it easily
conductor
a state of matter in which the substance expands to take both the shape and volume of its container
gas
a substance or object that does not allow energy to flow through it easily
insulator
a state of matter in which the substance takes the shape of the container and has an unchanged volume when poured from one container to another
liquid
the ability of a material (not an object) to sink or float in water
relative density
a state of matter in which the substance has a set shape and size
solid
the ability of a substance to dissolve in another substance, such as sugar dissolving in water
solubility
the amount of space that a substance or object takes up
volume
a combination of two or more substances that can be separated in some physical way
mixture
a force that acts in the opposite direction to movement
friction
the force that pulls objects toward each other
gravity
two or more forces that act on an object in different directions with the same size strength; result in no change in position, direction, or motion
equal forces
a push or pull that can change the position or motion of an object/material
force
forces that are acting on an object in different directions and are not the same strength; result in a change in position, direction, or motion
unequal forces
the path through which electricity can flow
circuit
light energy taken in by an object
absorbed
