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Using Particle Models to Explain Conservation of Mass

Chemical Reactions and Mass Conservation

6th Grade·Science·Open Global Science

Updated 1 month ago · 1 view

Model how atoms rearrange in chemical reactions without being created or destroyed, keeping total mass constant.

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Chemical Reactions and Mass Conservation

6th Grade · Science · Open Global Science

9 lessons

Goal

Differentiate physical changes from chemical reactions, identify signs of reactions, and demonstrate the law of conservation of mass.

9 lessons

0 of 9 done

Physical Changes vs. Chemical ChangesUp next
Signs of a Chemical ReactionNot started yet
Combustion Reactions and FuelsNot started yet
Corrosion and Rusting of MetalsNot started yet
Acid-Metal Reactions and Hydrogen GasNot started yet
Reactions That Release Heat EnergyNot started yet
Reactions That Absorb Heat EnergyNot started yet
Using Particle Models to Explain Conservation of MassYou are here
Measuring Mass in Open and Closed Reaction SystemsNot started yet

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Learning standards covered

OGS.7.PS.3Open Global Science Standards 2026™ · 6th Grade

Distinguish between physical reversible changes and irreversible chemical reactions (combustion, rusting, acid-metal reactions), identifying signs of chemical transformations and verifying the conservation of mass.