P; set of measurement made of same quantity in the same way. A; closeness of measurement to true value. Think bullseye
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5
Name the four states of matter
Solid, liquid, gas, plasma
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magnet
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gift
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thief
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10
Explain the atomic theory
describes characteristics and internal structures of atom. History of atomic models.
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10
Name the main subatomic particles and their charges of an atom
electrons -, protons + and neutrons 0
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5
Give an example of a question or problem that can be tested through scientific investigation.
ex: How long does it take water to freeze?
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5
Why is recording the units of measure in an experiment important?
communicate accurate data like with a recipe, experiment could come out wrong. Keeps data reliable. Allows repeat testing. Assures unit conversions and accuracy
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15
What is the difference between a theory and a law?
theory is set of ideas that attempts to explain why things happen, Law is observable phenomenon that holds true to all similar situations.
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heart
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star
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shark
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lifesaver
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10
What is the difference between science and pseudoscience?
science uses method and follows testing,data and research. Pseudo science can look like science but not testable, based on belief.
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5
Which forces are responsible for chemical bonding?
Electrostatic and nuclear strong force
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shark
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rocket
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banana
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10
Compare a physical change to a chemical change
physical ;changes shape but not composition; chemical changes composition not reversible like ash
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10
Give an example of conservation of energy and conservation of matter.
Any transfer of energy like stove to pot to heat soup, friction, sound in crash. transfer of matter from liquid to vapor; phase changes
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5
What is the difference between an ionic and covalent bond?
