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Changes in Matter

Explore Chapter 2 of Science for Grade 5, distinguishing between physical and chemical changes in matter. Learn about evaporation, condensation, sublimation, reactants, products, and chemical equations. Discover the vocabulary related to these concepts.

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Changes in Matter

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  1. Changes in Matter Science Chapter 2 Grade 5

  2. Physical Change Chemical Change Evaporation Condensation Sublimation Reactant Product Chemical Equation Chapter 2 – Vocabulary

  3. Physical Change • A change • Matter keeps the same chemical properties • A change in size, shape, volume, state of matter • No new product

  4. Chemical Change • A change • A matter changes into a different kind of matter • New substance • Different properties • Light, heat, smell, color change are signs of chemical change

  5. Evaporation • Process • Physical change • Molecules spread out more • Heat/ energy is added • From liquid to gas (water to vapor) • Opposite reaction to condensation

  6. Condensation • Process • Physical change • Molecules get closer together • Heat/ energy is taken away • From gas to liquid (vapor to water) • Opposite reaction to evaporation • Condensation forms clouds

  7. Sublimation • Process • Physical change • Molecules spread out • Heat/ energy is added • From solid directly to gas (dry ice to vapor)

  8. Reactant • A substance • Used in a chemical reaction • What you begin with • The “problem” Reactants  Product Product • A substance • Made in a chemical reaction • What you get in the end • The “answer”

  9. Chemical Equation • Statement • Chemical symbols • Shows what happens in a chemical reaction • Left side: Reactant • Middle: Arrow • Right side: Product

  10. Physical Change Chemical Change Evaporation Condensation Sublimation Reactant Product Chemical Equation Chapter 2 – Vocabulary

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