SCIENCE 6 REVIEWER (2 ND TRIMESTER). I. IDENTIFICATION 1. It is a group of organisms of the same kind living in same place at the same time. 2. It is.

SCIENCE 6 REVIEWER(2ND TRIMESTER)

I. IDENTIFICATION1. It is a group of organisms of the same kind living in same place at the same time.

2. It is considered as the largest ecosystem.

3. The interaction between biotic and abiotic factors.

4. The organism in the food chain that receives the most energy from the sun.

5. It is the most productive aquatic biome.

6. It is a gas that is one of the essential components of protein.

7. It is a kind of bacteria that converts most of N2 into NO3 .

8. It is an element present in all living things.

9. It is a theory which states that the Earth’s crust is made up of plates fit like a jigsaw puzzle.10. The layer of the Earth where living things are found.

II. MODIFIED TRUE OR FALSE (10 points)

On the first blank write T if the statement is TRUE, then prove your answer. If not, change the underlined word/s to make the statement correct, then explain why. 1. Mutualism exists between the butterfly and rose.

2. Nocturnal animals are found in desert biome.3. Carbonation causes mechanical weathering.

4. Pilandok(mouse deer) is an extinct Philippine animal.5. Animals are heterotrophs.

III. ANALYSIS1. Which organism receives

the least amount of energy?

2. What are the producers in the food web?

3. How many 1st order consumers are there in the food web?

4. How many 2nd order consumers are there in the food web?

5. If the hawk eats the snake who ate the frog, to what order of consumer does the hawk belong?

A. FOOD WEB

C. NITROGYN CYCLE 6. What nitrogen compound is needed by plants to produce protein?

7. What kind of gas is released through the process of denitrification?

8. What bacteria converts free nitrogen into nitrate?

9. What process converts free nitrogen into nitrogen compound?

10. What kind of bacteria released nitrogen gas in the air from nitrates?

C. POND ECOSYSTEM1. How do biotic factors

differ from abiotic factors?

2. Give at least 3 biotic factors and 3 abiotic factors in the given ecosystem?

3. Why are the plants in the ecosystem considered as the producers?4. What is the main source of energy of all the organisms in the given ecosystem?5. Identify at least 1 food

chain in the given ecosystem.

IV. ANALOGY1. pack of dogs: _____; Colony of ants: Cooperation

2. ________: hottest biome; tundra: coldest biome

3. Burning fuel : ______; Plants : O2

4. Transpiration : ___; precipitation: snow

5. protein : ______;

carbohydrates:Carbon6. ________: 78 % ; Oxygen: 21%

7. Wheat: ______; Fungi: decomposer

8. blue-green algae :____; paramecium : protist

9. Ponds:____________; River : running water

10. mud: ________; sand: sandstone11. Orchids and Trees: commensalisms;

Eagle and Snake:_____12. Flowers and bees: ____; Ticks on dogs: parasitism

13. Grazing animals: grassland;

bears and wolves: _____14. cacti: desert ; pines: ___15. sharks and dolphins: salty water; tilapia : ___ 

V. ODD – MAN OUT

1. A. air B. water C. narra D. soil2. A. nitrification B. ammonification C. condensation D. nitrogen fixation

3. A. estivation B. tropism C. migration D. hibernation

4. A. fish B. amphibian C. reptiles D. mammals5. A. kaingin B. miningC. planting trees D. pollution

VI. CLASSIFICATIONA. Weathering A – Chemical B - Mechanical1. Oxidation 6. animals2. Carbonation 7. wind3. Hydration 8. force of moving water4. changes in 9. plants temperature 5. dissolution 10. gravity

VI. CLASSIFICATIONB. Kinds of RocksA Igneous B Metamorphic C Sedimentary

1. Marble 6. granite2. Limestone 7. sandstone3. Pumice 8. gneiss 4. Slate 9. basalt5. Shale 10. conglomerate