Each group needs:

• 4 water displacement apparatuses (see below)
• 4 ring stands
• 4 ring clamps (4 inches) and support
• 4 100 mL graduated cylinders
• 4 balloons (of different colors red/orange/yellow/green/blue)
• 4 pieces of string, 6 inches in length (yarn will also work)
• 1 or 2 - electronic Balance(s)
• 2 weigh papers (1 for yeast and 1 for reactant)
• 2 spatulas (1 for yeast and 1 for reactant)
• 4 funnels
• poster paper and markers
• Chromebook to access Google Sheets or computer with Microsoft Excel
• copies of the Student Handout (one per student)
• timers

To create water displacement apparatus:

Option 1

• traffic cone (12 inches tall, available online)
• 500 mL plastic beaker, available online
• 2 zipties, 37 cm long
• X-Acto (or similar) knife, for teacher use only when assembling water displacement apparatus
• permanent marker
• square resealable plastic bag, snack size
• 250 g of dried rice
• Styrofoam plate, 7 inches in diameter

Option 2

• Funnel, 7.5 inches in diameter, available online
• 500 mL plastic beaker
• spiral hair tie, available online
• square resealable plastic bag, snack size
• 250 g of dried rice
• Styrofoam plate, 7 inches in diameter

To share with the entire class

• 1000 mL of distilled water heated to ~40°C
• 4 oz jar of instant yeast, such as Fleischmann’s Instant Yeast
• ~20 g of sucrose (e.g., from a bag of granulated white sugar)
• ~20 g of corn starch
• ~20 g  of lactose, available online
• ~20 g of glucose (or dextrose), available online
• ~20 g of fructose, available online