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Lesson 7: Lumpy Liquids

DESCRIPTION
Two solutions are combined to form a solid, demonstrating the process of precipitation.

OBJECTIVE
This lesson demonstrates an important chemical separation process called precipitation.

CONTENT TOPICS
Mixtures; separation processes (precipitation)

Lesson 7: Lumpy Liquids

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LIST OF MATERIALS

  1. Epsom salt
  2. Powdered laundry detergent
  3. Water
  4. Clear plastic cups
  5. Food coloring
  6. Eye dropper
  7. Measuring spoons

REVIEW GAME

HYPOTHESIS

When Epsom salt and powdered detergent solutions are combined, a solid will form and separate out as a precipitate.