Mixtures and solutions 4 review

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Mixtures and solutions 4 review

  1. 1. Elements Review Investigation 4Mixtures and Solutions
  2. 2. Earth Elements• What are the six most abundant elements in living organisms? What percentage of an organism is made of these six elements?• What are the six most abundant elements in the Earth? What percentage of Earth is made of these six elements?• How can so many different substances in the world be made of so few elements?• What does it mean when a person says everything is made of stardust?
  3. 3. New Technologies• How do scientists know that atoms and molecules combine in well-ordered arrays?• Explain why the periodic table has over 110 elements when only 90 occur naturally on Earth.
  4. 4. Summary: Elements• What is an atom?• What is an element?• Explain why there are so many different substances in the world.• What properties do all metals have in common?• What is the periodic table of the elements?

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