Republic of the Philippines
Department of Education
Regional Office No. VIII
Division of Northern Samar
Pambujan I District
PAMBUJAN NATIONAL HIGH SCHOOL
Pambujan, Northern Samar
Learning Activity Sheets
Quarter 1 Week 1
General Chemistry 1
Name of Learner: _________________________________________
Grade Level: ________
Section: ____________
Date: ______________
I.
Read and answer each statement carefully then write the letter of the best answer on a
separate sheet of paper.
1. Which physical property of matter is shown when a piece of material is turned
into a thin sheet?
A. Stiffness B. Flexibility C. Elasticity D. Malleability
2. Copper wires are usually used for electrical wire installations because it is ____
A. ductile B. Malleable C. Brittle D. cheap
3. Materials that easily break when a force is applied like glass are said to be ____
A. malleable B. Brittle C. Ductile D. elastic
4. Which of the materials below is a poor conductor of heat?
A. Iron B. Wood C. Gold D. Copper
5. ____ is the characteristic or trait that can be observed when a matter reacts to another substance.
A. Intensive Physical Property C. Chemical Property
B. Extensive Physical Property D. Physical Property
6. A heterogeneous mixture can be separated by all of the following methods EXCEPT ____
A. filtration C. distillation
B. decantation D. mechanical separation
7. To get salt out of a solution, we could use ____
A. filtration C. distillation
B. decantation D. mechanical separation
8. Condensing means transforming from gas to _____
A. solid B. liquid C. gas D. plasma
9. If I pour the water off after I boil the banana, this method is an example of _____
A. filtration C. distillation
B. decantation D. mechanical separation
10. Mary wants to get the iron filings out of some fine sand, what could be used to separate these
two solids?
A. Magnet B. Sieve C. Evaporation D. Decantation
II.
Sentence Completion. Complete each statement with a word/ concept in the blank of
the item.
1. Separating sand and water could be done through _____.
2. ____ involves the use of centrifuge to speed up the settling of the precipitate
using centrifugal or rotating motion.
3. The separation technique that takes advantage of different boiling points in
called ____
4. The best way to decompose water into oxygen and hydrogen is by ____
5. The sugar in sugar solution can be removed by __
6. The chemical symbol of oxygen is _____.
7. There is/are ____ hydrogen atom/s present in this chemical formula C6H12O6.
8. _____ is shorthand of expressing the types and the number of atoms present in a substance.
9. C is the chemical symbol for ______.
10. There is/are _____ oxygen atom/s in H2O.
III.
Matching Type. Match the descriptions under Column A with the correction concepts or
words in Column B. Write the letter of the correct answer.
Column A
1. The amount that has to be paid to buy
something
2. Refers to ingredient or constituent
3. These are goods that are bought for
consumption by the average consumer
4. Refers to an area or a sphere
5. Application of Science
IV.
Column B
A. Consumer Products
B. Technology
C. Cost
D. Composition
E. Field
Identification. Determine the types and number of atoms in the following
chemical formulas.
1
BF3
2.
C3H8
3.
K2CO3
4.
CH4
5.
CF4
V.
Identification. Determine the common name, the types and number of atoms,
and the molecular structure of the given chemical formula in each item.
Chemical
Formula
Common
Name
Type
Atoms
of Number
of Molecular
Each Atom
Structure
1. CaCO3
2. CaO
3. C2H5OH
GOOD LUCK!