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Answer Key
Prongo Grade 8 Reading Adventures
1.
claim, evidence, and reasoning
2.
independent experts examine methods and data before publication; it checks quality
3.
relevant, specific, and credible
4.
opinion expresses belief; evidence provides verifiable information others can examine
5.
uniting colonies without creating a government so powerful it threatens liberty
6.
federal: defense or foreign relations; state: schools or most elections (any valid pair)
7.
North: factories and wage labor; South: agriculture and cotton with enslaved labor
8.
whether to allow slavery (popular sovereignty)
9.
atoms are rearranged, not destroyed; bonds break and new bonds form
10.
carbon dioxide gas escapes into the air when the system is open
11.
it stays in motion at constant velocity unless an unbalanced force acts on it
12.
passengers keep moving forward when the car stops until the belt applies a force
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