[ Vocabulary ]
A testable prediction used to see how something works or to solve a problem.
A. Test
B. Hypothesis
C. Balanced Forces
D. Theory
E. Gravity
Select your answer:
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Vocabulary › ViewWhat’s the opposite of a slow-moving river?
A. a fast-flowing river
B. a fast-flow river
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New gadgets and … are invented to help us with our daily life.
A. experiments
B. effects
C. laboratories
D. equipment