World’s Most Asked Questions How Old is Earth

World’s Most Asked Questions How Old is Earth

Assessment

Interactive Video

Science, Physics, Geography

11th Grade - University

Hard

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The SCI Show explores the age of Earth, estimated at 4.54 billion years. Scientists use rock dating, including the oldest rocks in Canada and zircon crystals in Australia, to determine Earth's age. Space evidence from moon rocks and meteorites further supports this estimate. The video concludes with a viewer survey about owning old items.

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What new insight or understanding did you gain from this video?

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