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Science Vocabulary Atoms & Elements

Across
a neutral particle made of two or more atoms joined by covalent bonds
a pure substance that cannot be broken down into any other substances by chemical or physical means (simplest substances)
the number of protons in the nucleus of an atom
a well-mixed mixture containing a solvent and at least one solute that has the same properties throughout
the measurement of the amount of matter in the object
a characteristic of a pure substance that can be observed without changing it into another substance
the amount of space that matter occupies
Down
a characteristic of a pure substance that describes its ability to change into different substances
a pure substance made of two or more elements chemically combined in a set ratio
a measure of the average energy of random motion of particles of matter
the basic particle from which all elements are made
anything that has mass and takes up space
A way of learning about the natural world by gathering information