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Inquiries in Science®: Reconstructing Atomic Theory Kit



  • Model atoms based on information from the periodic table
  • Observe and explain metal salt flame tests
  • Help students meet the Next Generation Science Standards Performance Expectation HS-PS1-1: Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms

Grades 9–12. Students "time travel" through history to simulate past experiments and explore how critical discoveries shaped and modified modern atomic theory. First, they connect their observations of a flame test to the movement of electrons between orbitals. Next, students use models to describe atomic structure, learn how to use different atomic representations, and practice writing the electron configuration of an element using information from the periodic table. Finally, they apply their knowledge of atomic models to create detailed descriptions of a representation of an atom. Kit includes materials for 30 students working in groups of 3. Kit Refill (item #251269, sold separately) replenishes all the kit's consumable items.

   This item is sold and shipped to schools and businesses only. Not available to individuals or residential addresses. For substitution suggestions, please call us at 800.334.5551 (8am to 8pm, ET, Monday-Friday).


Shipping Information or Purchase Restrictions
  • This item is sold and shipped to schools and businesses only. Not available to individuals or residential addresses. Visit our Login & Registration page to learn how to create a Login and link it to an approved school or business account.
What’s Included:
  • 1 Methanol, 120 mL
  • 1 Iron Filings, 25 g
  • 1 Calcium Chloride, 20 g
  • 1 Lithium Chloride, 20 g
  • 1 Copper Sulfate, 20 g
  • 1 Potassium Chloride, 20 g
  • 1 Sodium Chloride, 20 g
  • 1 Disposable Pipet
  • 1 Safety Matches, Pack
  • 1 Caliper
  • 1,000 Large Paper Clips
  • 1,000 Small Paper Clips
  • 10 CD Envelopes
  • 12 Magnetic Marbles
  • 12 Round Boxes with Lids
  • 16 Ring Magnets
  • 37 Weighing Dishes
  • 60 Marbles
  • 1 Teacher’s Manual with Reproducible Student Guide
Needed But Not Included:
  • 1 Electronic Balance (accurate to 0.1 g)
  • 1 Spatula
  • 10 Calculators
  • 10 Marking Pens
  • 10 Metersticks
  • 10 Rulers
  •  Masking Tape
  •  Strong Bonding Glue
  •  Transparent Tape
  • 20 Rubber Bands (optional)
  •  Wooden Splints (optional)
Return Policy:

If for any reason you are not satisfied with this item, it is eligible for a return, exchange, refund, or credit up to 180 days from date of purchase. Restrictions may apply. Returns & Exchanges Policy.