Theories and Laws

1

Theories vs Laws

What each one does, and why neither becomes the other

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2

Conservation of Mass: A Law by Experiment

How careful weighing turned an idea into a law

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3

Plate Tectonics: A Theory by Evidence

How many lines of evidence built one explanation

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4

How Theories Develop

Building an explanation as evidence accumulates

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5

How Theories Are Disproved

When new evidence overturns an accepted explanation

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6

Evidence Behind Scientific Laws

The reproducible data that supports a law

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7

Predicting with Laws: Ohm's Law and Conservation of Energy

Collecting primary data to test what a law predicts

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8

Conservation of Energy Across Disciplines

One law that works in every science

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9

Unifying Theories

How one theory ties many observations together

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10

Nuclear Reactions and Mass–Energy

How E = mc² reinterpreted two conservation laws

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11

Module 4 Review: Theories and Laws

Pulling the whole module together

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