Science news.DIRECTIONS: Read the Science News section on pages 4 to 7. Then, test your knowledge by filling in the letter of the correct answer below. 1. Scientists used to think that great white sharks great white shark or white shark Large, aggressive shark (Carcharodon carcharias, family Lamnidae), considered the species most dangerous to humans. It is found in tropical and temperate regions of all oceans and is noted for its voracious appetite. (A) migrate during the winter. (B) stay near the coastal waters where they live. (C) swim roughly 20,000 km (12,400 mi) every year. (D) live only off the coast of Australia. 2. The steering wheel in a Pivo is linked to the car's lower part by. (A) rigid, metal components (B) a rotating tube (C) flexible wires (D) a radar signal 3. Which of the following statements about Pluto is NOT true? (A) Pluto formed from the icy material left over from when the other planets formed. (B) One moon orbits Pluto. (C) New Horizons should reach Pluto in July 2015. (D) Scientists have yet to study Pluto close-up. 4. Why might Pluto hold clues about the development of the solar system solar system, the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the most massive part of the solar system, containing almost 99.9% of the system's total mass. ? (A) It is the closest planet to the center of the solar system. (B) Pluto is made primarily of gas from the solar system. (C) It has an unusual "backward-moving" orbit. (D) Pluto is made from the icy material left over from when the other planets formed. 5. The scales on a blue morpho The Blue Morpho refers to several species of butterfly, including:
(A) wavelength. (B) amplitude amplitude (ăm`plĭt  d'), in physics, maximum displacement from a zero value or rest position. . (C) peak. (D) size. 6. A light wave with a--amplitude creates a--reflected color. (A) smaller, brighter (B) larger, brighter (C) smaller, white (D) larger, dimmer dim·mer n. 1. A rheostat or other device used to vary the intensity of an electric light. 2. a. A parking light on a motor vehicle. b. A low beam. 7. A scientist has made the first discovery of--preserved in amber. (A) a spider (B) resin (C) a fossil (D) blood 8. What protected the spider inside the amber from decay? (A) resin (B) blood (C) volcanic ash See under Ashes. See also: Ash (D) tree leaves 9. Kanebo's new chewing gum chewing gum, confection consisting usually of chicle, flavorings, and corn syrup and sugar (or artificial sweeteners). Prehistoric people are believed to have chewed resins. (A) contains chemicals from mint plants. (B) will whiten your teeth. (C) contains sweet-smelling chemicals. (D) will help you blow extra-large bubbles. 10. The skin's pores (A) release sweat and oils. (B) help rid your body of waste products. (C) allow scented chemicals to exit your body. (D) All of the above. ANSWERS 1. b 2. c 3. b 4. d 5. a 6. b 7. d 8. a 9. c 10. d |
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