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27 Cards in this Set

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  • Back
DIATOMACEOUS EARTH
Skeletal remains of diatoms, aquatic organisms with hard shells made of silica
CHEMICAL REACTION
A change that occurs as a result of mixing two or more materials together. A reaction results in the formation of new materials with different properties from the original ones.
SATURATED SOLUTION
A solution in which no more material will dissolve and additional material settles to the bottom like a beach
DENSITY
The amount of mass that a material has for its volume.
DILUTE
A solution less concentrated made usually by adding more liquid.
BOILING
The name for the process of the vaporization of liquid, usually of water.
EVAPORATE
To dry up or to change from a liquid to a gas
FREEZING
The process by which a substance changes from its liquid to its solid state.
SOLUTION
A special mixture that is formed when a material dissolves in a liquid and cannot be filtered out
SODIUM CHLORIDE
A white, crystalline material that dissolves in water also known as table salt
SCIENTIFIC METHOD
The sequence of actions which includes stating a problem, predicting, planning, and carrying out an experiment, recording data, and drawing a conclusion.
MOLECULE
A chemically combined group of two or more like or unlike atoms.
GAS
One of the three phases of matter. The other two being liquid and solid. Carbon dioxide is one example of this.
PROPERTY
A characteristic of an object. Something you can observe such as size, color, shape or texture.
VOLUME
A three-dimensional space occupied by something
DISSOLVE
The process of a material mixing with a liquid in a special way. When salt mixes with water, it seems to disappear and cannot be seen until the water dries up
MELTING
The process by which a substance changes from its solid to its liquid state.
CHANGE
A word that means to become different
SOLUBILITY
The property that substances have of dissolving in solvents, such as the solubility of salt in water.
MIXTURE
Two or more materials mixed or stirred together
ATOM
What the smallest part of matter called
CRYSTAL
The solid from of a material that can be identified by its special shape or pattern. Examples include salt, quartz, and ice.
MASS
The amount of matter that is in an object.
PRECIPITATE
A solid material that forms as a product of a reaction.
ELEMENT
Something that is found on the periodic table. It contains only atoms of the same type.
CONCENTRATION
The amount of material dissolved in a measure of liquid. The more material dissolved in the liquid, the more concentrated the solution.
COMPOUND
A substance that is composed of two or more elements, combined chemically.