PHYSICAL VS CHEMICAL - PowerPoint PPT Presentation

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PHYSICAL VS CHEMICAL

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physical vs chemical physical properties characteristics of matter that can be seen and measured color odor texture freezing point shape boiling point – PowerPoint PPT presentation

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Title: PHYSICAL VS CHEMICAL


1
PHYSICAL VS CHEMICAL
  • PHYSICAL PROPERTIES
  • CHARACTERISTICS OF MATTER THAT
  • CAN BE SEEN AND MEASURED
  • COLOR ODOR
  • TEXTURE FREEZING POINT
  • SHAPE BOILING POINT
  • SIZE DENSITY
  • MASS VOLUME

2
  • CHEMICAL PROPERTIES
  • CHARACTERISTICS OF MATTER THAT
  • INFLUENCE THEIR REACTIVITY WITH
  • OTHER SUBSTANCES THE FORMATION
  • OF NEW SUBSTANCES
  • ABILITY TO RUST
  • FLAMMABILITY
  • REACTION WITH ACIDS
  • SPOILING
  • COMBUSTABILITY

3
  • PHYSICAL PROPERTY CAN BE SEEN OR MEASURED
  • CHEMICAL PROPERTY HOW SOMETHING REACTS IN
  • THE PRESENCE OF SOMETHING ELSE
  • YELLOW COLOR
  • DENSITY
  • FLAMMABILITY
  • ODOR
  • MASS
  • NEUTRALIZES AN ACID
  • COMBUSTABLE
  • REACTS WITH A BASE
  • LUSTER (HOW SHINY IT IS)
  • REACTS WITH AN ACID TO FORM H2
  • BOILING POINT
  • MELTING POINT

4
  • PHYSICAL CHANGE
  • THE SUBSTANCE CHANGES WHAT IT LOOKS LIKE
  • THE FORM OF THE SUBSTANCES CHANGES
  • CHANGE OF STATE (MELTING, FREEZING,
  • SUBLIMATION, CONDENSATION,
  • EVAPORATION)
  • DISSOLVING A SUBSTANCE (KOOL AID)
  • BREAKING AN OBJECT (2 PIECES OF A PENCIL)
  • CUTTING A SUBSTANCE

5
  • CHEMICAL CHANGE
  • THE SUBSTANCE CHANGES WHAT IT IS
  • A NEW SUBSTANCE IS FORMED
  • HEAT, LIGHT, ENERGY, GAS IS GIVEN OFF
  • BURNING SOMETHING
  • COOKING SOMETHING
  • ROTTING
  • SOURING
  • SPOILING
  • A PRECIPITATE (A SOLID) IS FORMED
  • COLOR CHANGE
  • RUST FORMS

6
  • REMEMBER
  • SOME THINGS THAT HINT A CHEMICAL
  • CHANGE HAS TAKEN PLACE
  • HEAT OR LIGHT IS GIVEN OFF
  • BUBBLES OF GAS ARE GIVEN OFF
  • A PRECIPITATE IS FORMED
  • THE CHANGE IS DIFFICULT TO REVERSE

7
COPY THESE DOWN WRITE WHETHER THEY ARE A
CHEMICAL OR PHYSICAL CHANGE
  • boiling water
  • tearing clothes
  • tarnishing silver
  • lighting a match
  • chewing food
  • breaking a stick
  • a rusting nail
  • burning gas in a stove
  • melting ice cream
  • sawing wood
  • oxidizing food for energy
  • stretching a rubber band
  • spoiled potato salad
  • baking a cake

8
COPY COMPLETELEY AND STATE WHETHER THEY ARE A
CHEMICAL OR PHYSICAL CHANGE
  • SODIUM HYDROXIDE DISSOLVES IN WATER
  • HCl REACTS WITH KCl TO PRODUCE A SALT, WATER,
  • AND HEAT
  • A PELLET OF SODIUM IS SLICED IN TWO
  • ICE MELTS
  • MACARONI SALAD SPOILS IN THE SUN
  • WATER EVAPORATES
  • COOKING BROWNIES
  • A BALLOON IS FILLED WITH AIR
  • THE BODY DIGESTING FOOD
  • A CATERPILLAR TRANSFORMING INTO A BUTTERFLY
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