Particles

Front

Element Noun

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[el-uh-muhnt]

Back

Element

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A fundamental substance made of only one type of particle that cannot be broken down into a simpler substance.

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Example: An oxygen atom diagram shows protons, neutrons, and electrons, explaining elements as fundamental substances.

Front

Particle Noun

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[par-ti-kuhl]

Back

Particle

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The tiniest possible piece of an element or substance that still retains all the properties of that substance.

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Example: The image shows an atom's structure, highlighting protons, neutrons, and electrons as particles.

Front

Matter Noun

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[mat-er]

Back

Matter

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The physical substance that makes up everything in the universe and has mass and takes up space.

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Example: The image shows particles in solid, liquid, and gas states, demonstrating how matter takes up space and has mass.

Front

Chemical Symbol Noun

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[kem-i-kuhl sim-buhl]

Back

Chemical Symbol

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A one or two-letter abbreviation used internationally to represent a particle of a specific chemical element.

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Example: The image shows the chemical symbol 'O2' for oxygen, illustrating how symbols represent elements.

Front

Chemical Formula Noun

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[kem-i-kuhl for-myoo-luh]

Back

Chemical Formula

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A representation showing the kinds and numbers of element particles that combine to make one particle of a substance.

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Example: This image shows the chemical formula of glucose, C6H12O6, with colored spheres representing carbon, hydrogen, and oxygen atoms.

Front

Solid Noun

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[sol-id]

Back

Solid

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A phase of matter that has a definite, unchanging size (volume) and a definite, unchanging shape.

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Example: An ice cube shows a solid with a definite shape and volume.

Front

Liquid Noun

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[lik-wid]

Back

Liquid

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A phase of matter that has a definite size (volume) but takes the shape of the container it is in.

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Example: Particles in a liquid are close together but can move around, showing how a liquid takes the shape of its container.

Front

Gas Noun

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[gas]

Back

Gas

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A phase of matter that has no definite size (volume) or shape and spreads out to fill its container.

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Example: A balloon filled with gas demonstrates how gas expands to fill its container and takes its shape.

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; a measure of its size.

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Example: The image shows how to measure liquid volume by reading the meniscus at eye level.

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 physical forms in which matter can exist, most commonly as a solid, liquid, or gas.

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Example: Shows particle arrangement in solid, liquid, and gas, explaining phases of matter.