Phase Change

Front

Matter Noun

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[mat-er]

Back

Matter

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The substance that all physical objects are made of, which generally exists in a solid, liquid, or gas state.

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Example: The image shows solid ice melting into liquid water and then evaporating into gas, illustrating phase changes.

Front

Phase of Matter Noun

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[fayz uv mat-er]

Back

Phase of Matter

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One of the distinct forms in which matter can exist, such as solid, liquid, or gas; also known as a state.

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Example: The image shows solid ice, liquid water, and gas with arrows indicating phase changes.

Front

Solid Noun

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[sol-id]

Back

Solid

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A phase of matter with a definite shape and volume, where particles are held tightly together by strong bonds.

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Example: The image shows a solid structure of sodium chloride, where particles are tightly packed, demonstrating a solid's definite shape and volume.

Front

Liquid Noun

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[lik-wid]

Back

Liquid

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A phase of matter with a definite volume but no definite shape, where particles can move past one another.

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Example: Particles in a liquid move freely within a container, showing definite volume but no fixed shape.

Front

Gas Noun

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[gas]

Back

Gas

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A phase of matter with no definite shape or volume, where particles are not held together and move freely.

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Example: The image shows different gases like air and helium, illustrating that gases have no fixed shape or volume.

Front

Particle Noun

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[par-ti-kuhl]

Back

Particle

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A very small piece of matter, such as an atom or molecule, that combines to make up all substances.

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Example: This diagram shows an atom, illustrating particles like electrons, protons, and neutrons, which are small pieces of matter.

Front

Bond Noun

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[bond]

Back

Bond

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An attachment or force that holds particles together, determining the substance's state of matter in solids and liquids.

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Example: Atoms share electrons to form bonds, creating molecules like water.

Front

Volume Noun

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[vol-yoom]

Back

Volume

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The amount of three-dimensional space that a substance or object occupies, which is definite for solids and liquids.

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Example: A 3D box with labeled dimensions shows how volume is the space an object occupies.

Front

Shape Noun

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[shayp]

Back

Shape

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The external form or outline of an object, which is definite for solids but changes for liquids and gases.

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Example: The image shows how particle arrangement changes in solids, liquids, and gases, illustrating 'shape' in phase changes.

Front

Phase Change Noun

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[fayz cheynj]

Back

Phase Change

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A transition of matter from one state (solid, liquid, or gas) to another, which is caused by energy transfer.

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Example: The image shows ice melting into water and then evaporating into steam, illustrating phase changes.