Scanning tunneling microscope - answer✔Instrument used to "see" atoms.
Diatomic - answer✔two atom molecule.
Scientific Method - answer✔1. Making observations ( collecting data)
2. Suggesting possible explanations (formulate hypothesis)
3. Do experiments to test the possible explanation (testing hypothesis)
Theory - answer✔a set of tested hypotheses that gives an overall explanation of some natural
phenomenon.
This is an interpretation, not a direct observation.
An attempt to explain "why".
Observation - answer✔Something that is witnessed and can be recorded.
Law of conservation of mass - answer✔the total mass of materials is not affected by a chemical
change in those materials.
Law - answer✔summarizes what happens.
Measurement - answer✔always consists of two parts:
1. a number
2. a scale (or Unit)
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