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SECTION:
DATE PERFORMED:
LABORATORY SCHEDULE:
DATE SUBMITTED:
LABORATORY ACTIVITY 2
CLASSES OF AND CHANGES IN MATTER
A. REPORT SHEET
Classes of Matter
A. Elements and Compounds
Properties
Sulfur
Unheated
Heated
Magnesium Ribbon
Un-ignited
Ignited
Color
Odor
Physical State
Others
B. Mixtures
Mixture
Description
Type of Mixture
Mothball + Salt
Mothball + Salt + Sand
C. Separation of the Components of a Mixture
Component
Description
The mixture after mixing with
water
Decantate
Residue on the side of funnel
Residue on the evaporating
dish
Substance
Physical and Chemical Change
Type of Change
Justification
Table Salt
Table Sugar
Iodine crystal
NaHCO3
Types of Chemical Change
Type of Chemical
Change
Observation
Chemical Product
Synthesis
Decomposition
Displacement
Metathesis
B. QUESTIONS
1. Give 3 other examples of homogeneous and heterogeneous mixture.
2. Give some differences between chemical and physical changes.
3. Classify the following changes (Write Physical change or Chemical change)
a. Rusting of iron
b. Yellowing of leaves
c. Milling of palay
d. Roasting of meat
e. Water cycle
f. Washing of dishes
g. Burning of wood
h. Melting of candle
i. Dyeing of hair
j. Decoloration of stain with bleach
C. CONCLUSION