For Motivation/Introduction Activity:

Each group will need:

• various types of sunscreen; one different type per group (for example: sprays, lotions, organic sunscreen, inorganic metallic sunscreen, zinc, etc.)

To share with the entire class:

• a computer to show the Teacher Guided Presentation Part 1: UV Light and Teacher Guided Presentation Part 2: Integumentary System on PowerPoint

For the Main Activity:

Each group will need:

• Sample Procedures worksheet; three copies per student
• Control Lab Procedures worksheet; two copies per student
• Testing Apparatus Construction presentation and Data Collection worksheet; one copy per group
• Conclusion Poster Layout worksheet, one copy per group
• hot plate
• 1000 ml beaker
• two 250 ml beakers (students will use one while the other cools following use on the hot plate)
• 100 ml graduated cylinder
• two 10 ml graduated cylinders (one for measuring vinegar; one for measuring glycerin)
• permanent marker
• silicon spatula, available on Amazon and in other stores
• timer (students may use smartphones)
• electronic balance
• metal spatula (one large enough to measure 10 g of corn starch and other for measuring 0.6 g of glowing powder)
• weighing paper (used in chemistry classrooms)
• weighing boat (used in chemistry classrooms)
• five petri dishes
• ~60 g corn starch
• ~30 ml vinegar
• ~30 ml glycerin
• ~300 ml distilled water (tap water will work for this activity)
• ~3 g red phosphorescent (daytime white-glow) powder, available online
• pipettes (one for vinegar, one for glycerin)
• additional materials needed for different groups; note: all of these items can be purchased in department store craft section, craft store, or online:
• group 1: feathers, ~10 cm in length
• group 2: chocolate protein powder or coffee grounds, ~30 g
• group 3: yellow food coloring, 1 vial
• group 4: acrylic nails, 50 count bag
• group 5: brown plastic lacing thread
• group 6: green glitter, 100 g jar
• group 7: see Student Sample Examples and Cuticle Procedures

To construct the quantitative testing apparatus; each group will need:

• two ring stands
• two clamps (that will fit a ring stand)
• 1 cardboard box (approximate measure: 29.8 cm x 20.3 cm x 12 cm)
• masking tape
• box cutter
• UV flashlight, available online
• light sensor probe (can be purchased at Vernier; or check with your school’s science department)
• LabQuest Interface or Lab Quest Mini (can be purchased at Vernier; or check with your school’s science department)
• 25 – 50 g bottle of black acrylic paint

For evaluation of the activity, each group will need:

• large dry erase board (60 cm x 80 cm) or poster board
• dry erase markers or regular markers
• meter sticks