Each person needs:

• Lab Notes Worksheet
• Engineering Design Process Worksheet

Each group needs:

• 3 white rags (100% cotton)
• squeezable container of mustard
• black Sharpie marker
• tray or a plate
• plastic spoon
• plastic gloves (optional)
• safety goggles (optional)

For the class to share:

• water
• enzymatic laundry detergent (such as Seventh Generation Free & Clear; other brands available online)
• Ziploc plastic bags (gallon sized)
• Ziploc Plastic storage containers (quart sized)
• marbles (enough for several per group)
• dice (enough for several per group)
• 100 mL pourable containers or graduated cylinders