Performance product is highly skillful and shows

Performance/
product is
highly skillful
and shows
unusual
craftsmanship.
3
Shows accurate
concepts
Shares critical
thought of the
unit.
Performance/
product is
engaging
Performance/
product is
skillful and

96 | P a g e Week 10 Day 1
and sincerely
mindful of the
audience.
shows
unusual
craftsmanship.
2
Shows few
errors in
concepts
Shares
superficial
thoughts
Performance/
product is
somewhat
engaging but
doesn’t see m
mindful of
audience.
Performance/
product is
somewhat
skillful but
doesn’t reflect
good
preparation.
1
Shows some
erroneous
concepts.
Shows
superficial
thoughts
Performance/
product is
ineffective
and
unmindful of
the
audience.
Performance/
product is
unpolished
and obviously
with very little
preparation.
PRE-TEST ON METALS AND NON-METALS
Choose the letter of the correct answer.
1. Jeffrey wants to find out some of the distinguishing characteristics of metals. He
used aluminium can, iron nail, gold ring and silver spoon. He finally noted that these
materials display the same kind of properties. Which of the following describes the
characteristics of a metal observed by Jeffrey?
A. Metals are brittle C. Metals are malleable
B. Metals are insulators D. Metals are non-conductors of heat
2. Which of the following group of substances consists of metallic elements?
A. Aluminium, copper, potassium C. phosphorus, chlorine, bromine
B. Oxygen, carbon, sulfur D. carbon, nitrogen, hydrogen
3. Chlorine, iodine and bromine are non-metals. What BEST distinguishes a non-
metal from a metal is its ___________.
A. Homogeneity C. poor conductor of electricity
B. Boiling point D. ductility

97 | P a g e Week 10 Day 1
4. Which of TRUE about metals?
A. They have varying melting points.
B. They are used to prevent thermal or electrical conductivity.
C. They are good conductors of heat.
D. They have low melting points.
5. Substance A and Substance B were tested for their physical characteristics. The
results showed that substance A and substance B are malleable, heat conductor,
shiny and ductile. What is the nature of substance A and substance B?
A. Acids B. Metals C. non-metals D. metalloids
6. Which among the following statements best describe a metal?
A. Metals are found on the left side and of the center of the periodic table.
B. Metals lie on the right side of the zigzag line in the periodic table.
C. Metals are found along the zigzag line in the periodic table.
D. Metals are found both in the left and right side of the periodic table.
7. Noble gases are found in the right side of the zigzag line in the periodic table.
Noble gases belongs to what group of elements
C. Metals C. non-metals
D. Metalloids D. both metals and non-metals
8. Which among the given elements below are metalloids?
C. Fe, Al, Cu C. S, O, C
D. B, Si, Ge D. Sn, Zn, F