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Chemical and Physical Changes. Mrs. Lowe April 2011. Chemical changes . Chemical change is a change that forms a new type of matter Chemical property is a feature of matter that can cause a chemical change. Examples of a different type of matter forming during a chemical change.

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chemical and physical changes

Chemical and Physical Changes

Mrs. Lowe

April 2011

chemical changes
Chemical changes
  • Chemical change is a change that forms a new type of matter
  • Chemical property is a feature of matter that can cause a chemical change
examples of a different type of matter forming during a chemical change
Examples of a different type of matter forming during a chemical change

Burning logs ashes

New tricycle Rusted tricycle

changes in type of matter
Changes in type of matter

Apple Rotting Apple

Shiny silver Tarnished silver

some clues or evidence of chemical changes
Some clues or evidence of Chemical Changes
  • Changing color (food rots, metal rusts or tarnishes)
  • Having an unusual smell
  • Changing texture
  • Becoming more or less acidic
  • Getting hot or cold without being heated or cooled
  • Bubbles forming because a gas is giving off
slide6
Note
  • During a physical change
      • bubbles form when water boils, but it is not a chemical change
      • Modeling clay changes color if you mix two colors together
physical change
Physical Change

Physical change is a feature of matter that you can recognize with your senses.

Physical change is a change in matter in which they type of matter stays the same

Texture the feel of a surface.

some physical properties
Some Physical Properties

shape temperature

color

smell hardness

mass weight

length state of matter

volume texture

some physical changes
Some Physical Changes

Cutting

Bending

Tearing

Breaking

Melting

Dissolving

Magnetizing

Boiling

Warming

Cooling

Freezing

Evaporating

Separating

physical or chemical change
Physical or Chemical Change

Mixing salt and water

physical or chemical
Physical or Chemical

Boiling water

chemical or physical change2
Chemical or Physical Change

Mixing chocolate powder into milk