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Lab-Aids: Conservation of Matter Kit - STEMfinity
  • SKU: LAB-142

Lab-Aids: Conservation of Matter Kit

$109.99

Lab-Aids: Conservation of Matter Kit


In this activity students investigate the difference between closed and open systems and confirm, the Law of Conservation of Matter. They conduct and compare a chemical reaction taking place in a closed system with one occurring in an open system. They observe that while the mass of a gas-producing reaction decreases in an open system, it remains the same in a closed system. Their data is also used to reinforce the molecular nature of all matter, including gases.

Scientific Concepts:

  • Matter is neither created nor destroyed during chemical reactions.
  • Substances react chemically in characteristic ways with other substances to form new substances that have different chemical properties.
  • In reactions, the starting materials-reactants-are chemically altered to form products.


Content List:

  • 1 Teacher's Guide with MSDS
  • 28 Student Worksheets and Guides
  • 12 Reaction bottles with screw-on dropper top
  • 6 30 mL bottles of 4M HCl (half filled)
  • 6 15 g vials of NaHCO3
  • 6 White scoops

Classroom Planning:
  • To complete this kit requires one to two ~55-minute class periods
  • Number of students: 24