How Variables Cause Change

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How Variables Cause Change
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What is a variable?
A variable is something that is likely to
change or vary.
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During this six weeks.. we will see that
variables can be identified, controlled, and
manipulated to cause positive and negative
outcomes.
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We will also discover the variables that can
change the Earth such as plate tectonics,
earthquakes, volcanoes, weathering, and erosion.
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From 1850-1929, historic variables impacted our
country. You can learn that industrialization,
immigration, and urbanization caused changes in
the environment of the United States.
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We hope you are ready to explore variables from
the perspective of student, scientist, and
historian.
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Guiding Questions

• Why is identifying variables important?
• How do the variables that change the Earth's
  surface affect each other?
• Why did historic variables have such an impact on
  our country during 1850-1929?