Name __________________________________________________
Date ___________________________________________________
HOMOGENEOUS VS. HETEROGENEOUS MATTER
Classify the following as either homogeneous or heterogeneous.
1.
flat soft drink (no bubbles)
9.
air (with smog)
2.
chocolate chip ice cream
10.
paint
3.
Italian salad dressing
11.
alcohol
4.
sugar
12.
iron
5.
soil
13.
beach sand
6.
aluminum foil
14.
pure air
7.
black coffee
15.
chunky spaghetti sauce
8. sugar water
-------------------------------------------------------------------------------------------------------------------PURE SUBSTANCES VS. MIXTURES
Classify the following as pure substances or mixtures.
1.
sodium
2.
water
3.
soil
13.
chocolate chip ice cream
4.
coffee
14.
nitrogen
5.
oxygen
15.
eggs
6.
70% isopropyl alcohol
7.
carbon dioxide
17.
table salt
8.
cake batter
18.
nail polish
9.
air
19.
milk
10.
chicken noodle soup
11.
iron
12.
16.
20.
salt water
blood
soda
CLASSIFICATION OF MATTER
Check the appropriate categories for the substances listed below. All substances will have a
check in more than one column.
Substance
lead
metal
table salt
(NaCl)
Kool-Aid
drink
vegetable
soup
oxygen
gas
distilled
water
concrete
pure gold
brass
metal
flat 7-Up
soda
raw egg
(cracked
open)
air
pure iron
iron rust
(Fe2O3)
soil
baking
soda
(NaHCO3)
Heterogeneous Homogeneous
Pure
Solution Element Compound Mixture
Matter
Matter
Substance
PHYSICAL VS. CHEMICAL CHANGES 1
Classify the following as being a chemical or a 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 in water.
12.
Wood rotting.
13.
Pancakes cooking on a 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.
PHYSICAL VS. CHEMICAL PROPERTIES & CHANGES 2
Part 1 - Indicate whether each of the following describes a chemical or a physical property.
1. Sulfur is a bright yellow solid.
2. Sulfur has a low melting point.
3. Sulfur causes silver to tarnish.
4. Aluminum is very malleable.
5. Monuments made of copper corrode in acid rain.
6. Copper is a good conductor of electricity.
Part
7.
8.
9.
10.
11.
12.
13.
2 - Classify the following as chemical or physical properties.
color
14. solubility
reactivity
15. expansion
flammability
16. melting point
odor
17. rusting
porosity
18. reacts with oxygen
stability
19. density
ductility
20. conductivity
Part
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
3 - Indicate whether these changes are chemical, physical, or nuclear.
Lead reacts with acid in a car battery.
31. burning of gasoline
Gasoline burns in a car engine.
32. liquefying oxygen
Frost forms on a car window.
33. digestion of food
Formation of plutonium from uranium.
34. tarnishing of silver
Formation of clouds from water vapor.
35. magnetizing steel
formation of dew on grass
36. reacting sodium and water
melting of ice cream
37. dissolving sugar in water
exploding of dynamite
38. burning sugar to produce carbon
fission of uranium
39. decay of radon to lead
sublimation of moth balls
40. fusion of hydrogen into helium