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Physical Science

Anything that has mass and takes up space.
the ability or tendency to float in water or air or some other fluid.
A substance that is formed as the result of a chemical reaction.
The portion of earth that is water.
The mass of water vapor contained in a certain volume of air.
an increase in the earth's average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect.
A method of expressing numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10.
Heat transfer through heat waves.
A substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions (cations).
is the distance that light, which moves at a constant speed, travels in one year.
collections of stars, dust and gas rotating around super massive black holes.
formed when electrons are shared between two atoms.
Speed in a given direction
The accumulation or laying down of matter by a natural process, as the laying down of sediments in a river or the accumulation of mineral deposits in a bodily organ.
the rate at which velocity is changing
any substance that cannot be broken down into simpler substances
A part, substance, or element that lies beneath and supports another part, substance, or element.
an ionic compound made from neutralization of an acid with a base
mixture of two liquids that would not normally mix.
A subatomic particle that has no change and that is located in the nucleus.
The gradual replacement of one type of ecological community by another in the same area, involving a series of orderly changes, especially in the dominant vegetation.
A line in space that matches the direction of the flow of radiant energy
The change in position of an object.
Chemistry. the relative capacity of an atom, molecule, or radical to undergo a chemical reaction with another atom, molecule, or compound.
A substance that cannot be broken down into simpler substances by chemical means.
The arrangement of waves of radiant energy in order of wavelength and frequency.
a machine that converts one form of energy into another, especially mechanical energy into electrical energy
the outermost layer of a planet.
a negatively charged subatomic particle.
a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.