Pulung Santol G7

Republic of the Philippines Department of Education Region III – Central Luzon PULUNG SANTOL NATIONAL HIGH SCHOOL Porac, Pampanaga SCIENCE QUIZ BEE QUESTIONS QUARTER 1 EASY 1. It is the metal oxides dissolves in water to form bases, it also means “base without water”. a. Acid aldehydes b. Base aldehydes c. Acid anhydrides d. Base anhydrides Correct answer: D. Base anhydrides AVERAGE 1. Which of the following is an example of a fair test? a. To test the effect of water on plants, you use two similar setups (Setup A and Setup B) and water the plants only in Setup A. b. To test the effect of light on the growth of plants, you expose Setup A (mung beans) to light and keep setup B (potato spuds) in a dark room. c. To test the effect of light on the growth of mung beans, you expose Setup A and Setup B to the same amount of light but you introduce water to Setup A. d. To test the effect of fertilizers on the growth of plants, you introduce fertilizers to Setup A (mung beans) and do not introduce fertilizers in Setup B (potato spuds). Correct Answer: A. To test the effect of water on plants, you use two similar setups (Setup A and Setup B) and water the plants only in Setup A. DIFFICULT 1. A classmate states, “All compounds containing H atoms are acids, and all compounds containing OH groups are bases.” Do you agree? Justify your answer. Correct Answer: YES, because according to Arrhenius, acid are molecular compounds with ionizable hydrogen atoms in aqueous solution while the base are molecular compound which ionizes to yield hydroxide ions in aqueous solution. CLINCHER 1. If the two phases are at the same initial pressure there is a net transfer of solvent across the membrane into the solution, what is this process? a. Diffusion b. Elevation c. Osmosis d. Dialysis

Correct Answer: C. Osmosis Republic of the Philippines Department of Education Region III – Central Luzon PULUNG SANTOL NATIONAL HIGH SCHOOL Porac, Pampanaga SCIENCE QUIZ BEE QUESTIONS QUARTER 2 EASY 1. It is parts of vegetative propagation wherein new plants arise from very short, thick underground stems with thin, scaly leaves. a. Tuber b. Runner c. Rhizome d. Corm Correct answer: D. Corm AVERAGE 1. It is part of continuing process wherein the community is stable during the stage. a. Pioneer community b. Transition community c. Climax community d. Cap community Correct Answer: C. Climax community DIFFICULT 1. A dam is being built in your area to harness water from two rivers and increase water supply for the growing population in your town. What might be the positive impacts of this strategy? Correct Answer: Dams are important because they provide water for domestic, industry and irrigation purposes CLINCHER 1. Plant can reproduce when pollen is carries from the anther to stigma of the same plant; this process is known as _______. a. Cross pollination b. Self-pollination c. Direct pollination d. Intersect pollination Correct Answer: B. Self-pollination

Republic of the Philippines Department of Education Region III – Central Luzon PULUNG SANTOL NATIONAL HIGH SCHOOL Porac, Pampanaga SCIENCE QUIZ BEE QUESTIONS QUARTER 3 EASY 1. It is a force exerted by a surface as an object moves across it. a. Contact force b. Frictional force c. Noncontact force d. Normal force Correct answer: B. Frictional force AVERAGE 1. Which part of the room will be hottest if a hot air is near the floor? Correct Answer: Near the ceiling DIFFICULT 1. What will happen if, during induction, the ground connection was removed first before the charging body? Correct Answer: The electrons on the electroscope will be stranded. This causes a negative charge on the object. CLINCHER 1. Which of the following statements is true about particle interaction in matter? a. Gases have greater particle interaction than solids. b. Liquids have greater particle interaction than solids. c. Solids have lesser particle interaction tan gas. d. Liquids have lesser particle interaction than solids. Correct Answer: D. Liquids have lesser particle interaction than solids.

Republic of the Philippines Department of Education Region III – Central Luzon PULUNG SANTOL NATIONAL HIGH SCHOOL Porac, Pampanaga SCIENCE QUIZ BEE QUESTIONS QUARTER 4 EASY 1. It is the layer of atmosphere that is extending to about 90 km above the Earth. a. Troposphere b. Stratosphere c. Thermosphere d. Mesosphere Correct answer: D. Mesosphere AVERAGE 1. Which among the following shows how azimuthal notation works? a. The compass is divided into 360 degrees with north as 360 o, east as 180o , south as 90o and west as 270o b. The compass is divided into 360 degrees with north as 270 o, east as 0o , south as 90o and west as 180o c. The compass is divided into 360 degrees with north as 90 o, east as 180o , south as 270o and west as 0o d. The compass is divided into 360 degrees with north as 0 o, east as 90o , south as 180o and west as 270o Correct Answer: D. The compass is divided into 360 degrees with north as 0o, east as 90o , south as 180o and west as 270o DIFFICULT 1. Why do aircrafts fly in the stratosphere? Correct Answer: Due to the horizontal direction of air flow, at the same time to avoid the weather in troposphere CLINCHER 1. How does the sun-Earth-moon affect us? Correct Answer: the sun-Earth-moon affects us by creating tides, phases, eclipses, seasons, solar winds and precession.