Which statements correctly describe theories? Check all that apply.Theories result from several repeated experiments.Theories are based on a single hypothesis.Theories explain observations and hypotheses.Theories may be revised over time.Theories cannot help predict what may happen in the future.Theories are proven facts.
The dependent variable is.
For what reasons could a theory be changed or replaced? Check all that apply.New technology is developed that provides more information about the theory.New experimental methods are designed to test a theory.A new, untested hypothesis is proposed.New information is discovered that does not support the theory.A single experiment produces results that differ from all previous experiments.
For which of these questions could a testable hypothesis be developed? Check all that apply.Are gases better than solids?Do different liquids freeze at the same rate?Do cookies taste better when they are baked in a gas oven or in an electric oven?Does temperature affect the strength of a magnet?Does the color of water affect how quickly it evaporates?
The independent variable is.
Which statements correctly describe laws? Check all that apply.Laws are created based on repeated experimentation.Laws are based on observations.Laws explain observations.Laws are factual statements.Laws can be changed or replaced.
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