PHYSICAL PROPERTY CHEMICAL PROPERTY
1. observed with senses 1. indicates how a substance
2. determined without destroying matter reacts with something else
2. matter will be changed into a new
substance after the reaction
PHYSICAL AND CHEMICAL PROPERTIES AND CHANGES
Name _____Key_______________________
Identify the following as a chemical (C) or physical property (P):
___P___1. blue color ___P___8. melting point
___P___2. density ___C___9. reacts with water
___C__3. flammability (burns) ___P___10. hardness
___P___4. solubility (dissolves) ___P___11. boiling point
___C___5. reacts with acid ___P___12. luster
___C___6. supports combustion ___P___13. odor
___P)___7. sour taste ___C___14. reacts with air
Identify the following as physical (P) or chemical (C) changes.
__P___1. NaCl (Table Salt) dissolves in water. ___C___9. Milk sours.
__C___2. Ag (Silver) tarnishes. ___P___10. Sugar dissolves in water.
__P___3. An apple is cut. ___C___11. Wood rots.
__P___4. Heat changes H
2
O to steam. ___C___12. Pancakes cook.
__C___5. Baking soda reacts to vinger. ___C___13. Grass grows.
__C___6. Fe (Iron) rusts. ___P___14. A tire is inflated.
__P___7. Alcohol evaporates . ___C___15. Food is digested.
__P___8. Ice melts. ___P___16. Paper towel absorbs water.
Physical and Chemical Changes
Part A
Can you recognize the chemical and physical changes that happen all around us? If you change the way
something looks, but haven’t made a new substance, a physical change (P) has occurred. If the substance
has been changes into another substance, a chemical change (C) has occurred.
An ice cube is placed in the sun. Later there is a puddle of water. Later still the puddle is gone.
Two chemical are mixed together and a gas is produce.
A bicycle changes color as it rusts.
A solid is crushed to a powder.
Two substances are mixed and light is produced.
A piece of ice melts and reacts with sodium.
Chocolate syrup is dissolved in milk.
A marshmallow is toasted over a campfire.
A marshmallow is cut in half.
PHYSICAL CHANGE CHEMICAL CHANGE
1. a change in size, shape, or state 1. a change in the physical and
2. no new substance is formed chemical properties
2. a new substance is formed