Each group needs:

To perform the gum stretch and analysis:

• bubble gum (or Silly Putty)
• meter stick
• graph paper (1 per student)·      
• projector and computer

To create a slime sample:

• Slime Procedures Sheet (1 per student)
• bottle of glue Elmer’s white glue
• 1000 ml beaker
• black permanent marker
• electronic balance
• weigh paper
• metal spatula
• 1 L (~1 qt) Ziploc bag
• pipette
• 10 ml graduated cylinder
• 100 ml beaker

To perform the tensile test:

• Testing Stations Construction Sheet
• Testing Procedures Sheet
• Data Table (1 per student)
• Google Sheets Directions or Microsoft Excel Directions
• construction paper
• tape measure
• 2.5 cm (~1 in) masking tape
• clear tape
• sticky note pad
• black permanent marker
• 1 L (~1 qt) Ziploc bag
• 4 ‘snack’ size zipper bags
• 40 marbles
• video recording device
• teacher-manufactured tensile testing tool (see instructions below)

To create tensile testing tool:

• Tensile Tool Instructions
• paper clip
• keyring loop
• sticky-sided (peel-and-stick) Velcro
• duct tape
• twine
• hole punch

To share with the entire class:

• contact solution, ~70 ml
• baking soda, ~16 g
• blue food coloring
• digital scale (a kitchen or lab scale that can measure mass in grams)