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Science Crossword 1

5.5A, 5.5 BC, 5.6A, 5.6B, 5.6C, 5.6D
Across
Energy waves bouncing off the surface of an object (mirrors or echoes return energy back to the source)
A force that resists the motion of two surfaces sliding across one another
To make different without changing what the material is made of, such as cutting, folding, or melting
A clear piece of curved glass or plastic that bends passing light to focus or spread the light rays
A measurable characteristic that describes the physical state of something, including mass, magnetism, temperature, density, shape, volume, and conductivity
Material that allows heat or electrical energy to easily flow through it
A particular type of mixture where a substance dissolves in another; the molecules spread evenly through the other substance, such as in salt added to water
Electromagnetic energy that can be sensed by the eye
Anything that has mass and takes up space
Energy resulting from the flow of charged particles
Down
Mechanical energy that travels as waves through the air or water and vibrates the ear drum upon contact
Spread out uniformly in a liquid
A push or pull that causes an object to move, stop, or change direction
The pathway though which electrical current flows
Material through which heat or electricity does not easily flow
Energy that can be measured by a thermometer
What is needed to do work or cause change
Energy from movement
The bending or redirection of energy waves as they pass from one substance to another
A combination of two or more substances where each keeps its own properties and both can be easily separated