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Explore Science !

Across
The study of the natural world through observations and experiments.
An educated guess.
The smallest particle of a substance that can exist.
The act of paying close attention in order to learn something.
The amount of matter in a solid, liquid, or gas.
Down
The force that attracts molecules of the same substance together.
A test or procedure done for the purpose of proving or learning something.
The change that happens when two or more substances act on each other to form a different substance.
To see, or to watch closely.
Facts or information that can be used to analyze something.