Review For Periodical Exam Flashcards
(41 cards)
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.
8, Which statements best define planet Earth?
A. It has gases.
B. It supports life.
C. It has rocky core.
D. It supports other planet.
B.
- It was found out that Earth’s surface is covered with water. Approximately, how many percent of water comprises
the Earth?
A. 45% water
B. 50% water
C. 60% water
D.70% water
D.
10.Earth can support the survival of organisms. What is/are the factor/s that make/s Earth habitable?
- atmosphere
III. temperature
II. energy
IV. nutrient
A.1
B. 1, 11
C. I, II, III
D.1,11, III, IV
D.
- In order for an organism to survive, nutrients are needed. What are the nutrients that planet Earth can offer for an organism to exist?
A. Earth has an atmosphere and ozone layer.
B. Earth has both water cycle and nitrogen cycle.
C. Earth has natural activities to circulate nutrients.
D.All of the above
D.
12.Many studies have shown similarities of Earth and Venus.What makes Earth similar with Venus?
A. Earth and Venus have the same orbit.
B.Earth and Venus have the same diameter.
C. Earth and Venus have the same atmosphere.
D. Earth and Venus are of the right size to hold a sufficient atmosphere.
D.
13.What makes human and other living organisms capable to live on Earth?
A. Earth can provide food for the organism.
B. Earth can protect the organism from any possible threat.
C . Earth’s temperature is mostly hot compared to other planets.
D.Earth has the right amount of temperature, water, good atmosphere, and favorable climate.
D.
14.Planet Earth is considered uniquely different from any other planets in the Solar system. Which among the given Choices correctly answers the statement?
A. Earth is the only planet that changes structure.
B. Earth is the only planet that turns around in space.
C.Earth is the only planet that is mostly covered with water.
D. Earth is the only planet that is mostly made from rocks.
C.
- What is the reason why every living thing on Earth has the chance of survival?
A. Earth is covered with 65% water.
B. Earth thick atmosphere consisted mainly of carbon dioxide.
C. Earth has active volcanoes similar with those that are found in Venus.
D.Earth has ozone layer to protect living organisms from harmful radiation.
D.
