Review For Periodical Exam Flashcards
Pyrite is a yellowish mineral that looks like gold and is commonly called fool’s gold. What is the property of mineral exhibited by pyrite wherein it reflects light and with a metallic look? *A. Color
B. Hardness
C. Luster
D. Streak
C.Lusteris the property of a mineral that reflects light showing a metallic image.
Quartz can break other than along planes of cleavage. What property of minerals is shown in this situation? *
A. Cleavage
B. Fracture
C. Hardness
D. Streak
B. Fracture is the breakage of the surface along the planes of cleavage.
Some minerals like mica has surfaces with planes of weak bonds in the crystals. Thus, its crystals can be peeled like layers of onion. What is the property exhibited by mica? *
A. Cleavage
B. Fracture
C. Hardness
D. Tenacity
A. Cleavage is the peeling of the surfaces with weak bonds.
. Which property refers to the resistance of minerals to scratching? *
A. Cleavage
B. Fracture
C. Hardness
D. Luster
C. Hardness is the character of minerals that shows its resistance from scratching.
5.What are the building blocks of rocks and it is mostly found in the geosphere? *
A. elements
B. minerals
C. ore
D. soil
B. Minerals are found in the geosphere.
6.In its powdered form, the mineral hematite is reddish. Which mineral property is best described? *
A. color
B. hardness
C. luster
D.Streak
D. Streak is the property of a mineral that shows its color when powdered.
. Which is not a property that can be used to identify a mineral? *
A. hardness
B. luster
C. opaque
D. streak
C. Opaque is not one of the properties of minerals.
What is the property of minerals that reflects light on its surface? *
A. color
B. crystal structure
C. luster
D. streak
C.Luster is the character of a mineral to shine under lights as it reflects it.
Which refers to a naturally occurring, inorganic solid that has a definite crystalline structure and chemical composition? *
A. compound
B. crystal
C. mineral
D. rocks
C. Mineral is an inorganic solid that has compositions from chemicals
1.What makes planet Earth different from the other planets in the
A. It supports life.
B. It is mostly covered in water.
C. The atmosphere holds gases.
D.All of the above
D
2.Which statement does not describe planet Earth?
A. It has 70% water
it is rocky, terrestrial planet.
C. It has solid and active surface.
D. It has atmosphere made of nitrogen alone.
D.
3.What makes planet Earth a “house” for living organisms?
A. It has comfortable distance from the sun.
B. The atmosphere serves as shields from the sun.
C. Only A
D.Both A and B
D.
-4. Which is not true about Earth when compared to Mars?
A.It has life mechanism.
B. It has water and atmosphere.
C.It has carbon dioxide in the atmosphere.
D. It has atmosphere that supports oxygen.
C.
5.What benefits dose the Earth’s atmosphere gives to endure life on Earth?
- The atmosphere nourishes life on Earth
II. The atmosphere protects Earth from meteorites.
III. The atmosphere gases blocks damaging ultraviolet light
IV. The atmosphere reduce temperature extremes between day and night
A. I only 1
B. I, II
C. I, II, III
D.I, II, III, IV
D.
6, Planet Earth is considered as “blue planet.” Which of the following best describes the surface of planet Earth?
A. Earth has atmosphere.
B. Earth has lots of volcano.
C. Earth is covered with red dust.
D.Earth has mostly water on the surface.
D.
7.For many, Earth is different from other planets. Why do you think so?
A. Earth is mostly covered in water.
B.Earth has comfortable distance from the sun.
C. Earth has carbon dioxide on its atmosphere.
D. It has approximately same size as that of Venus.
A.