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Chemical Reactions, Conservation of Mass, and Gas Generation

8th Grade · Science · Open Global Science

7 lessons

Goal

Identify indicators of chemical change, write balanced chemical equations, and generate and test common gases.

7 lessons
0 of 7 done
  1. Signs of a Chemical Reaction: Color Change, Gas, Precipitation, and HeatUp next
  2. Using the Periodic Table to Identify Atoms in a FormulaNot started yet
  3. Modeling the Law of Conservation of Mass in Closed SystemsNot started yet
  4. Balancing Chemical Equations Using Particulate ModelsYou are here
  5. Laboratory Preparation and Testing of Oxygen GasNot started yet
  6. Laboratory Preparation and Testing of Carbon Dioxide GasNot started yet
  7. Comparing Combustion and Thermal Decomposition ReactionsNot started yet
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Learning standards covered

GlobalOGS.9.PS.2Open Global Science Standards 2026™ · 8th Grade

Investigate chemical reactions and indicators of chemical change, identifying reacting atoms via the periodic table, verifying the law of conservation of mass through balanced chemical equations, and exploring gas generation such as the preparation and properties of oxygen and carbon dioxide.