Each group needs:

• 2-4 small test tubes or small plastic water bottles (small enough for a balloon to fit over the opening)
• 2-4 balloons
• 2-4 teaspoons of yeast
• 2-4 teaspoons of sugar
• Graduated cylinder (optional)
• Enough goggles/safety glasses for each group member.
• 3 copies of the Yeast Experiment Worksheet

To share with the entire class:

• Vinegar
• Water
• Hot plate or Bunsen burner
• Other materials students could add to yeast that may hamper or help yeast grow (i.e., lemon juice, chocolate powder, soda, etc.)
• Triple beam balance or digital scale (optional)