Examlex
What are the two basic materials of which the moons in the solar system are composed? For each type of material, name an example of a moon whose surface is composed primarily of that material.
Mass
A measure of the amount of matter in an object, usually in kilograms or grams in the metric system.
Accurate
Describes a measurement or result that is close to the true value.
Mass
A measurement of the amount of matter that an object contains.
Sample
A small part or quantity intended to show what the whole is like, used for analysis or investigation.
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