Mass and Volume

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Matter Noun

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[mat-er]

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Matter

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Anything that has mass and volume, constituting all physical substances that exist in the universe.

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Example: This image shows that matter exists in different states (solid, liquid, gas) by illustrating how the particles are arranged in each state.

Front

Mass Noun

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[mas]

Back

Mass

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A measure of the amount of matter in a substance or an object, which remains constant regardless of location.

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Example: The balance scale tilts towards the apple, showing it has more mass (the amount of 'stuff' in an object) than the 1-gram weight.

Front

Volume Noun

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[vol-yoom]

Back

Volume

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A measure of the amount of three-dimensional space that a substance or an object takes up.

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Example: This diagram shows how to measure the volume of a liquid using a graduated cylinder, reading the measurement at the bottom of the curved surface (meniscus).

Front

Kilogram (kg) Noun

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[kil-uh-gram]

Back

Kilogram (kg)

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The basic SI unit for measuring mass, equivalent to 1,000 grams and used for larger objects.

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Example: This image shows a balance scale comparing a soccer ball to a 1 kilogram (kg) mass, visually explaining that the kilogram is a standard unit used to measure mass.

Front

Gram (g) Noun

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[gram]

Back

Gram (g)

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A metric unit of mass, equal to one-thousandth of a kilogram, commonly used for measuring smaller masses.

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Example: This image shows that one gram (g) is a small unit of mass, roughly equal to the mass of a paperclip, a pencil cap, or a pinch of salt.

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Balance Noun

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[bal-ans]

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Balance

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A scientific instrument used to accurately measure the mass of an object, often by comparing it to known masses.

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Example: A triple beam balance is a scientific instrument used to measure the mass of an object by moving riders along beams until they balance the object.

Front

Weight Noun

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[weyt]

Back

Weight

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A measure of the force of gravity acting on an object's mass, which can change with location.

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Example: An object's mass (1 kg) is constant, but its weight changes depending on the planet's gravity (9.81 N on Earth vs. 3.72 N on Mars).

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Gravity Noun

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[grav-i-tee]

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Gravity

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The natural force that attracts any two objects with mass toward each other, like a planet and an object.

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Example: This diagram shows that Earth, an object with a very large mass, exerts a gravitational force that pulls everything towards its center.

Front

Cubic Meter (m³) Noun

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[kyoo-bik mee-ter]

Back

Cubic Meter (m³)

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The basic SI unit for measuring volume, representing the space occupied by a cube with one-meter sides.

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Example: This diagram shows a cube with each side measuring one meter (1 m), visually representing that a cubic meter is the volume of this space.

Front

Liter (L) Noun

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[lee-ter]

Back

Liter (L)

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A common metric unit used to measure the volume of liquids, equal to one cubic decimeter.

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Example: The image shows a 1-liter bottle alongside other containers of smaller (250 ml, 750 ml) and larger (3 L, 5 L) volumes, visually demonstrating the quantity of a liter.