Earth & Life Science

Republic of the Philippines[pic 1][pic 2]

Department of Education

Region XII[pic 3]

Division of Sarangani

ALABEL NATIONAL HIGH SCHOOL

Alabel, Sarangani Province

Earth and Life Science

First Quarter Examination

Name: _________________________________________  Grade/Section: _____________ Date: ___________

I. Multiple Choice: Read and understand each question. Encircle the best answer.

1. Scientists believed that the universe is continually expanding, which hypothesis describes that time will come galaxies may come together until finally they will collide and explode as a result the sky would grow as hot as the sun then everything would vanish into a black hole?

1. Big bang theory            
2. Creationism        
3. Big Crunch        
4. Steady State Theory

1. Which hypothesis describes that “universe has neither beginning nor end” as proposed by Gold, Bondi and Hoyle?

1. Big bang theory          
2. Creationism        
3. Big Crunch        
4. Steady State Theory

1. Which of the following is NOT an agent to cause erosion?

1. Wind
2. Tides
3. Gravity
4. Density

1. Hydrosphere is one of the subsystem of the earth. Which of the following does not belong to this subsystem?

1. Ocean        
2. Sea                
3. Lake                 
4. Island

1. This process occurs when oxygen combines with other substances where new minerals are formed.

1. Carbonation
2. Hydration
3. Weathering
4. Oxidation

1. This is a soil erosion control in which an eroding area, usually on a slope, is covered with rocks fitted and cemented together.

1. Terracing
2. Riprapping
3. Contour tillage
4. Strip cropping

1.  Which shows each of the following layers in order from the outermost layer? 

[pic 4]

1. crust, mantle, outer core, inner core
2. mantle, crust, outer core, inner core
3. mantle, outer core, crust, and inner core
4. inner core, outer core, crust, and mantle

1. How do you compare the densities of the earth’s crust, mantle and core?

1. The mantle is less dense than both core and crust
2. The mantle is denser than both the core and the crust.
3. The mantle is denser than the core but less dense than the crust
4. The mantle is less dense than the core but denser than the crust

1. How does the mantle differ from the crust?

1. The mantle is the thickest layer of Earth, while the crust is the thinnest.
2. The mantle consists mostly of lava, while the crust consists mostly of iron
3. The mantle is the least stable layer of Earth, while the crust is the most seismically active.
4. The mantle flows with convection currents, while the crust consists primarily of rocks and minerals.

1. Minerals have different properties that help scientists identify them. As a learner, how are you going to distinguish the physical properties of rock-forming minerals?

1. It has colour, hardness, streak and cleavage like feldspar.
2. It has cleavage, hard and occur in different sizes like quarts.
3. It has no color but transparent and glassy looking like mica.
4. It has physical properties but no chemical properties like talc.

1. How do you classify rocks as igneous, sedimentary and metamorphic?

1. According to its uses and size.
2. According to its color and shape
3. According to its chemical composition
4. According to its characteristics and origin

1. Hardness is a property that helps identify minerals. Scientists use a scale of 1-10 to show the hardness of a mineral. What number would be given to the hardest?

1. 10                  
2. 5                          
3. 1                    
4. 0

1. Which of the following is NOT a biogeochemical process?

1. Carbon cycle
2. Nitrogen cycle
3. Phosphorus cycle
4. Potassium cycle

1. Why do chalk and limestone are considered as sedimentary rocks?

1. because they are found in the mantle.
2. because they resisted to pressure and heat.
3. because of the lava came out cools and harden then formed rocks.
4. because they came from the broken rocks, remnants of animals, minerals and shells that are combined together.

1. How are you going to interpret the given picture?

[pic 5]

1. the picture illustrate that limestone could also be called marble because they exposed to intense heat.
2. the picture tells that limestone and marble have different parent rock but with the presence of heat, pressure and water they combined.
3. the picture depicts a sedimentary rock- limestone transformed to a metamorphic rock- marble due to resistance from heat, pressure and water.
4. the picture shows that limestone and marble are both metamorphic rocks which are found beneath the Earth and cannot resist to heat, pressure and water.

1. Supposed you owned mining and quarrying corporations. You have many stores selling processed products. Which of the following does not make use of rocks and minerals?

1. Jewelry                          
2. Electrical device
3. Buildings                  
4. Concrete road

1. The natural process by which atmospheric and environmental agents, such as wind, rain, and temperature changes, disintegrate and decompose rock.

1. Weathering                        
2. Mass Movement / Wasting
3. Erosion                              
4. Magmatism

1. James walked along the Pacific Road when a piece of rock caught his attention. He examined it and he observed that it’s different from the others found in his place. He saw rusty orange color on rock and started disintegrating. What may James’ possibly thought about the rock?

1. The rock experienced biological weathering.  
2. The rock experienced oxidation.
3. The rock undergone physical weathering        
4. The rock undergone carbonation

1. How does erosion change landscapes?

1. Weathered products are due to chemicals, water, and wind.
2. Erosion change landscape via extreme temperature and intense heat.
3. Erosion changes landscapes by moving sediments, rocks, and soils via wind, water and ice.
4. Pressure pushes rock up to the surface and when there is no longer pressure on top its expands and exfoliate.

1. As an erosional process, how is mass wasting / movement unique from wind, water, and ice?

1. Mass wasting affects particles of all sizes whereas the others affect only smaller particles.
2. Mass wasting does not require a transporting medium.
3. Mass wasting affects much larger geographic areas than does wind, water, and ice.
4. Mass wasting result to no movement of soil while the others cause movement. 

1. I and II      
2. I, II, and III  
3. II, III and IV    
4. I, II, III and IV

1. Man increases the chance of landslides in all of the following ways EXCEPT:

1. Building on unstable slopes
2. Planting trees on unstable slopes
3. Undercutting the base of slopes to build roads
4. Removing vegetation from steep slope

1. The entire mantle                 in huge cells, driven by the Earth's internal heat engine.

1. convects         
2. conducts  
3. converges           
4. diverges

1. The two main reasons the Earth's interior is hot are the Earth's natural radioactive decay and _____________________.

1. isotopes
2. accumulated solar heat                    
3. the Earth is closer to the Sun            
4. heat from the Earth's original formation

1. Which statement shows sequence on the process of magma formation?

1. magma chamber                
2. intense temperature melts rock        
3. lava flows

1. I, II, III                 
2. II, I, III                        
3. III, II, I                
4. II, III, I

1. What happens when the magma is formed?

1. solidify and directly forms an igneous rock
2. form lava and forms an igneous rock
3. cooled and solidify down to form igneous rock
4. the volcanic eruption will form a lava

1. I & III                        
2. I, II & IV                
3. III & IV                
4. II & III

1.  What are the factors that contribute metamorphism?

1. heat                        
2. radioactivity
3. presence of chemically active fluids        
4. either a & b

1. Which of the following is TRUE about metamorphic rock?

1. Metamorphic rocks can metamorphose into other metamorphic rocks.
2. Metamorphic rocks are mostly found in the magma chambers.
3. Metamorphic rocks are formed when magma cools below Earth’s surface.
4. Metamorphic rocks are formed when fragments of rocks, minerals, and /or organic materials are compacted and cemented together.

1. What do you think is the best reason why igneous rocks are molten under the earth crust?

1. temperature increases with depth, so melting is more likely to occur.
2. pressure increase with depth, thus pressure raises the temperature.
3. temperature and pressure does not affect the melting of rocks
4. temperature and pressure are the two factors greatly affect the melting of igneous rocks under the earth crust.

1. Compare the following formations of igneous rocks. Which statement is incorrect?

1. Intrusive and exogenous igneous rocks are both came from the Earth’s core.
2. Intrusive igneous rocks created by resisting intense pressure and heat while extrusive igneous rocks formed when lava solidify.
3. Intrusive igneous rocks formed when magma cooled and solidified while extrusive igneous rocks formed when lava cooled and solidified.
4. Intrusive igneous rocks formed when lava cooled and solidified while extrusive igneous rocks formed when magma cooled and solidified.

Part II. ESSAY & DIAGRAMMING.

30 – 32 Illustrate the interconnection of the systems of the earth.

Scoring Rubric