NAME:_____________________________________________________________DATE:__________________
WORKSHEET
“Qualitative vs. Quantitative Observations”
Label the following as “Qual” (Qualitative) or “Quant” (Quantitative) observations:
1.
QUANT
The beaker contains 250 mL of acetone.
2.
QUAL
The beaker is made of glass.
3.
QUAL
The weather is hot and muggy outside.
4.
QUANT
The humidity level is 89.2%.
5.
QUANT
The length of the skeleton is 1.57 meters.
6.
QUAL
The alloy is made up of copper and zinc.
7.
QUANT
The weighing boat contains 6.231 grams of sodium bicarbonate.
8.
QUAL
The piece of magnesium ribbon is silver in color with blackened edges.
9.
QUANT
The temperature of the liquid rose to 97.8oC.
10.
QUANT
The rock sample contains 78.1% limestone.
NAME:_____________________________________________________________DATE:__________________
WORKSHEET
“Properties of Matter”
Place a check in the appropriate columns to show whether the property is
a. Chemical or Physical
b. Intensive or Extensive
Physical
Property
Intensive
Property
Magnetic
√
√
Blue color
√
√
Smells like rotten eggs
√
√
Boiling point
√
√
Sour taste
√
√
PROPERTY
Flammability
Chemical
Property
√
√
Mass of 25 grams
√
Density
√
Reacts violently with sodium
√
√
√
√
Length of 2.2 cm
√
Luster (shiny)
√
√
Melting Point
√
√
Explodes in water
Extensive
Property
√
√
√
Volume of 15 cm3
√
Malleable (can be hammered thin without breaking)
√
√
Hardness
√
√
Dissolves in water
√
√
√
NAME:_____________________________________________________________DATE:__________________
WORKSHEET
“Physical or Chemical Change?”
Label the following as examples of “C” chemical changes or “P” physical changes.
1.
C
burning coal
2.
P
melting silver
3.
C
cooking a cake
4.
P
dissolving sugar in water
5.
P
freezing nitrogen
6.
P
cutting wood
7.
C
tarnishing silver
8.
P
boiling water
9.
C
decaying leaves
10.
C
rusting iron
11.
P
melting butter
12.
C
burning paper
13.
P
cutting paper
14.
P
sublimation of dry ice
15.
C
exploding TNT
16.
P
making a salt water solution
17.
P
grinding meat
18.
P
evaporating alcohol
19.
C
burning magnesium metal
20.
C
rotting potatoes
NAME:_____________________________________________________________DATE:__________________
WORKSHEET
“Matter”
Classify each of the following as (HO) homogeneous or (HE) heterogeneous forms of matter:
1.
HE
pizza
6.
HO
glass (SiO2)
2.
HO
nitrogen (N)
7.
HE
Snickers candy bar
3.
HO
brass (alloy of Cu and Zn)
8.
HO
table sugar (C12H22O11)
4.
HE
muddy river water
9.
HE
chocolate chip ice cream
5.
HO
cup of coffee
10.
HO
pancake syrup
Classify each of the following as an (E) element, (C) compound, or (M) mixture:
1.
E
iron
6.
C
table salt (NaCl)
2.
C
water (H2O)
7.
M
Hershey’s Kiss
3.
M
orange juice
8.
E
oxygen
4.
M
cough syrup
9.
M
Dr. Pepper
5.
E
calcium
10.
C
table sugar (C12H22O11)