Hypothesis, Theory, or Law? Read each statement and decide if it is a hypothesis, a theory, or a law. Match each statement to its correct
description.
Hypothesis o
A scientist conducting an experiment begins with the knowledge that mass is neither created nor
destroyed during chemical reactions.
Theory O
After a wet winter a botanist notices fungus on her Photinia shrub. She suggests that the shrub
Photinia will develop a leaf fungus after winters with more than 25 cm of rain.
Law
Scientists decide that after repeated standardized trials, that certain traits in peas are passed
down from the parent plants. The scientists publish their findings in a journal.
Scientists take evidence from a variety of experiments to support the idea that atoms of different
elements consist of different numbers of the same types of sub-atomic particles.
In his chemistry class Jim is Investigating the chemical properties of metals. After watching calcium
react with water, Jim makes an educated guess that all metals dissolve in water.
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