For the entire class to share:

• book on engineering: Video: Rosie Revere Engineer or Buy it
• book(s) on magnification: Video: Do Not Lick this Book or Buy it 
• pair of Velcro shoes (example pair to show the class, available online; any Velcro example on a piece of clothing or object will do)
• clear tape                                   
• Teacher Assessment Checklist

For each group:

• eye dropper or pipette
• piece of plastic or cling wrap                             
• plastic cup                         
• plastic sandwich bags             
• cup of water                           
• pair of scissors                                       

For each student:

• Velcro square, available online
• Magnifier Iteration Checklist        

Additional Materials for optional extension

• petri dishes, 1 per student, available online
• mini flashlights, 1 per student, available online
• paper towel rolls
• linking cubes
• Popsicle sticks