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5th Grade Science
Matter and Change
7. Chemical Changes
7.2 Reactions, Signs of chemical reactions
Discover the Signs of Chemical Reactions Around You
You will learn to identify the key signs that a chemical reaction has occurred and understand how reactants are transformed into brand new products.
What You'll Learn
You will identify signs that show a chemical reaction has occurred.
You will distinguish irreversible chemical changes from reversible physical changes.
You will learn that reactants transform into new substances called products.
You will recognize energy release as heat or light during reactions.
What You'll Practice
1
You will identify signs of chemical reactions in everyday scenarios.
2
You will distinguish chemical changes from physical changes using examples.
3
You will explain why rusting, burning, and cooking are chemical changes.
Why This Matters
Recognizing the signs of chemical reactions helps you understand how new substances form in everyday life, from cooking food to rusting metal to breathing.
This Unit Includes
1 Video lesson
Practice exercises
Learning resources
Skills
Chemical Reactions
Precipitate
Reactants
Color Change
Irreversible Change
NM Curriculum Aligned