Materials List: Element, Mixture, Compound

To share with the entire class:

  • 20 sets of bolts, nuts and washers
  • 9 plastic dishes
  • tape and marker, to number dishes
  • four examples of elements:
    • aluminum (one small sheet of foil)
    • copper (a small piece of wire or tubing)
    • iron (filings or a magnet)
    • carbon (in the form of a pure carbon pencil or graphite)
  • four examples of compounds:
    • water, or H20 (~100 mL)
    • table salt, or NaCl (~10g)
    • baking soda, or¬†NaHCO3 (~10g)
    • eggshell or a seashell, or CaCO3
  • four examples of mixture, both homogeonous and heteogenous:
    • inflated Ziploc bag (as an example of air)
    • bottle of Coke or other soda
    • salad dressing (such as a vinegarette made of oil and water)
    • salt water
  • Data Table, one per student
https://www.teachengineering.org/activities/view/uoh_sep_mixtures_activity1