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Physical Science

Across
Total energy of a material's particles, including both kinetic energy and potential energy.
An electrical circuit where the current has only one path. If the path is interrupted in any point, it stops current flow in the entire circuit.
A positively or negatively charge atom
Atomic particle with no charge that is part of an atom's nucleus.
A measurement of the amount of matter in an object.
The two ends of a piece of magnetic material where the magnetic forces are strongest, labeled north pole and south pole.
The basic unit of a chemical element.
A characteristic of a substance that indicates whether it can undergo a specific chemical change.
High frequency electromagnetic waves that travel at the speed of light, have no mass or charge and are the most penetrating form
A material that does not allow heat or electrons to move through it easily.
A mixture in which different parts can be easily distinguished
The basic unit of energy and work.
Electromagnetic waves that have long wavelengths and are used in communications.
Substance in which all the atoms in a sample are alike.
The number of wave crests that pass a point during one second; expressed in hertz.
-Strong temporary magnet made by inserting an iron core into a wire coil and passing an electric current through the coil.
A horizontal row in the periodic table.
Down
A table of the elements arranged according to repeated changes in properties.
Thermal energy that flows from a warmer material to a cooler material.
Energy in the form of motion, as in a moving car or truck.
The SI unit of force.
Two forces acting in opposite directions on an object, and equal in size.
The rate of change in velocity (speed and/or direction) when velocity is decreasing; also called negative acceleration.
A mixture in which different materials are blended evenly so that the mixture is the same throughout; also called a solution.
The changing of a substance from a solid state to a liquid state.
A simple machine consisting of a bar that is free to pivot around a fixed point.
The unit for measuring resistance
Electromagnetic waves that have a higher frequency than visible light.
The region around a magnet where magnetic forces act
-In the periodic table, each of the 18 vertical columns of elements; each group is made up of elements with similar properties
In sound, the difference among sounds of the same pitch and loudness.
A difference in electrical potential, measured in volts with a voltmeter.
The tendency of an object to resist any change in its motion.
The mass per unit volume of a material; describes how tightly packed a substance's molecules are.
The unit of measure for frequency