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Chemical Changes and Reactions

5th Grade · Science · Open Global Science

8 lessons

Goal

Identify indicators of chemical changes, examine common reactions, and contrast irreversible chemical processes with physical changes.

8 lessons
0 of 8 done
  1. Comparing Reversible Physical Changes and Chemical TransformationsUp next
  2. Identifying Evidence of Chemical ReactionsNot started yet
  3. Combustion: Investigating the Burning of Candle WaxNot started yet
  4. Oxidation and Rusting of Iron MetalsNot started yet
  5. Thermal Chemical Changes in Cooking and BakingNot started yet
  6. Acid-Base Reactions: Vinegar and Bicarbonate of SodaNot started yet
  7. Mass Stays the Same in Closed Chemical SystemsYou are here
  8. Evaluating Methods to Prevent Unwanted Chemical ReactionsNot started yet
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Learning standards covered

GlobalOGS.6.PS.3Open Global Science Standards 2026™ · 5th Grade

Identify, investigate, and explain chemical changes resulting in the formation of new substances with distinct properties—such as combustion of candles, rusting of iron nails, thermal cooking of food, and acid-base reactions like vinegar with bicarbonate of soda—contrasting non-reversible chemical transformations with reversible physical changes.