big ideas

Big Idea 1

Big Idea 1: Earth scientists use repeatable observations and testable ideas to understand and explain our planet.

Big Idea 2

Big Idea 2: Earth is 4.6 billion years old.

Big Idea 3

Big Idea 3: Earth is a complex system of interacting rock, water, air, and life.

Big Idea 4

Big Idea 4: Earth is continuously changing.

Big Idea 5

Big Idea 5: Earth is the water planet.

Big Idea 6

Big Idea 6: Life evolves on a dynamic Earth and continuously modifies Earth.

Big Idea 7

Big Idea 7: Humans depend on Earth for resources.

Big Idea 8

Big Idea 8: Natural hazards pose risks to humans.

Big Idea 9

Big Idea 9: Humans significantly alter the Earth.

Big Ideas: Activities

Big Ideas videos bring to life the “big ideas” of Earth science - the nine core concepts that everyone should know.

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