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UNIT 1 VOCAB

Across
the smallest unit with the basic properties of life
a very powerful magnifying glass
smallest basic unit of matter
two or more atoms joined (or “bonded”) tightly together
Down
the process of learning about the natural world through observation and experimentation.
The study of living things
a pure substance that is made from a single type of atom
The substances present at the start of a chemical reaction
made up of the interaction of all living organisms (like animals, plants, and bugs) in an area with all of the non-living organisms (like water, dirt, rocks, and the sun).
a substance that is formed as the result of a chemical reaction.