MATTER AND CHANGE

HOMOGENEOUS VS. HETEROGENEOUS MATTER WORKSHEET

Classify the following as either homogeneous or heterogeneous.

  1. flat soft drink (no bubbles)9. Air (smog)
  2. chocolate chip ice cream10. paint
  3. Italian salad dressing11. alcohol
  4. Sugar 12. iron
  5. Soil13. Beach sand
  6. Aluminum foil14. Pure air
  7. Black coffee15. Chunky spaghetti sauce
  8. Sugar water

PURE SUBSTANCES VS. MIXTURES WORKSHEET

Classify the following as pure substances or mixtures.

  1. Sodium11. iron
  2. Water12. Salt water
  3. Soil13. Chocolate chip ice cream
  4. Coffee14. nitrogen
  5. Oxygen15. eggs
  6. 70% isopropyl alcohol16. blood
  7. carbon dioxide17. Table salt
  8. cake batter18. Nail polish
  9. air19. milk
  10. chicken noodle soup20. Soda

CLASSIFICATION OF MATTER WORKSHEET

Check the appropriate categories for the substances listed below. All substances will have a check in more than one column.

Substance / Heterogeneous
Mixture / Homogeneous
Mixture / Pure
Substance / Solution / Element / Compound / Mixture
Lead metal
Table slat
Kool-Aid
Drink
Vegetable soup
Oxygen gas
Distilled water
Concrete
Pure gold
Brass metal
Flat 7-Up soda
Raw egg (cracked and open)
Air
Pure iron
Iron (rust)
Soil
Baking soda (NaHCO3)

PHYSICAL VS. CHEMICAL CHANGES WORKSHEET

Classify the following as being a chemical or physical change.

  1. sodium hydroxide dissolves in water
  2. Hydrochloric acid reacts with potassium hydroxide to produce a salt, water, and heat.
  3. A pellet of sodium is sliced in two.
  4. Water is heated and changed to steam.
  5. Potassium chlorate decomposes to potassium chloride and oxygen gas.
  6. Iron rusts
  7. When placed in water, a sodium pellet catches on fire as hydrogen gas is liberated and sodium hydroxide forms.
  8. Evaporation.
  9. Ice melting
  10. Milk sours
  11. Sugar dissolves
  12. Wood rotting
  13. Pancakes cooking on griddle
  14. Grass growing in a lawn.
  15. A tire is inflated with air.
  16. Food is digested in the stomach.
  17. Water is absorbed by a paper towel.

Classify the following as chemical and physical properties.

  1. color
  2. reactivity
  3. flammability
  4. odor
  5. stability
  6. ductility
  7. solubility
  8. expansion
  9. melting point
  10. rusting
  11. reacts with oxygen
  12. density
  13. conductivity

Indicate whether the changes are physical chemical.

  1. lead reacts with acid in a car battery
  2. gasoline burns in a car engine
  3. frost forms on a car window
  4. formation of dew on grass
  5. melting ice cream
  6. exploding of dynamite
  7. sublimation of moth balls
  8. digestion of food
  9. tarnishing silver
  10. magnetizing steel
  11. reacting sodium and water
  12. dissolving sugar with water
  13. burning sugar to produce carbon