Science news.Name:-- DIRECTIONS: Read the Science News section on pages 4 to 6. Then, test your knowledge by filling in the letter of the correct answer below. 1. At rest, a Venus flytrap's leaves are (A) flat. (B) in a convex shape. (C) in a concave Concave Property that a curve is below a straight line connecting two end points. If the curve falls above the straight line, it is called convex. shape. (D) angled at 45 degrees. 2. Before the Venus flytrap can snap its leaves to trap prey, it must gain (A) mass. (B) velocity. (C) elastic potential energy Noun 1. elastic potential energy - potential energy that is stored when a body is deformed (as in a coiled spring) elastic energy P.E., potential energy - the mechanical energy that a body has by virtue of its position; stored energy . (D) kinetic energy kinetic energy: see energy. kinetic energy Form of energy that an object has by reason of its motion. The kind of motion may be translation (motion along a path from one place to another), rotation about an axis, vibration, or any combination of . 3. Of the following foods, eating more of which best fits with the new U.S. Dietary Guidelines dietary guidelines Cardiology A series of dietary recommendations from the Nutrition Committee of the Am Heart Assn, that promote cardiovascular health. See Caloric restriction, food pyramid, French paradox. ? (A) beef (B) broccoli (C) pasta (D) olive oil 4. A serving of fruit or fruit juice is equal to -- cup(s). (A) 0.25 (B) 0.5 (C) 1 (D) 1.5 5. Researchers used fMRI and found that when a person is telling the truth, he or she is using the -- part of the brain. (A) back (B) front (C) left hemisphere (D) right hemisphere 6. When a person is lying, he or she is using the brain part responsible for (A) emotional responses. (B) storing personal memories. (C) storing information such as telephone numbers. (D) hearing. 7. The San Andreas fault San Andreas fault, great fracture (see fault) of the earth's crust in California. It is the principal fault of an intricate network of faults extending more than 600 mi (965 km) from NW California to the Gulf of California. (A) runs north to south in New Mexico. (B) is located along the California coast. (C) stretches across the Grand Canyon. (D) runs parallel to the Colorado River. 8. Blind faults are hard to find because they are (A) usually underwater. (B) masked by rocks on Earth's surface. (C) formed by earthquakes. (D) inside another fault. 9. The new biodegradable plastic, flower-sprouting, cellphone (CELLular telePHONE) The first ubiquitous wireless telephone. Originally analog, all new cellular systems are digital, which has enabled the cellphone to turn into a smartphone that has access to the Internet. cover could help (A) boost the flower industry. (B) attract pollinators to England. (C) make phones cheaper. (D) reduce trash in landfills. 10. How will the new, plastic cell-phone cover decompose de·com·pose v. de·com·posed, de·com·pos·ing, de·com·pos·es v.tr. 1. To separate into components or basic elements. 2. To cause to rot. v.intr. 1. ? (A) The cover turns into a pot for a sunflower. (B) The cover turns into a sunflower. (C) Microorganisms convert the plastic material to soil. (D) Microorganisms turn the cover into nutrient-rich fertilizers. ANSWER 1. b 2. c 3, b 4, b 5. a 6. a 7. b 8. b 9. d 10. c |
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