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Changes in Matter. Science Chapter 2 Grade 5. Physical Change Chemical Change Evaporation Condensation. Sublimation Reactant Product Chemical Equation. Chapter 2 – Vocabulary. Physical Change. A change Matter keeps the same chemical properties
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Changes in Matter Science Chapter 2 Grade 5
Physical Change Chemical Change Evaporation Condensation Sublimation Reactant Product Chemical Equation Chapter 2 – Vocabulary
Physical Change • A change • Matter keeps the same chemical properties • A change in size, shape, volume, state of matter • No new product
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
Evaporation • Process • Physical change • Molecules spread out more • Heat/ energy is added • From liquid to gas (water to vapor) • Opposite reaction to condensation
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
Sublimation • Process • Physical change • Molecules spread out • Heat/ energy is added • From solid directly to gas (dry ice to vapor)
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”
Chemical Equation • Statement • Chemical symbols • Shows what happens in a chemical reaction • Left side: Reactant • Middle: Arrow • Right side: Product
Physical Change Chemical Change Evaporation Condensation Sublimation Reactant Product Chemical Equation Chapter 2 – Vocabulary