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Lesson 9: Egg-Dye Solutions

DESCRIPTION
Acids and bases are used to determine which works best to dye eggs.

OBJECTIVE
In this lesson, students set up an experiment using various solutions to determine whether acids or bases work better for dyeing eggs.

CONTENT TOPICS
Acids and bases; chemical reactions

Lesson 9: Egg-Dye Solutions

WATCH LESSON

DOWNLOAD LESSON PLAN

LIST OF MATERIALS

  1. Red and blue litmus paper (optional)
  2. Various acids and bases (vinegar, ammonia,
    lemons, orange juice, borax, milk of
    magnesia, etc.)
  3. Hard-boiled eggs (3-6 per group)
  4. Food coloring or dye
  5. Cups
  6. Plastic spoons (one per cup)

REVIEW GAME

HYPOTHESIS

Acids work better to dye eggs because they soften the eggshell, which allows the dye to be absorbed.