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CHECK FOR UNDERSTANDING.


Name: --

Killers Without Cures

Directions: True or false? Circle the correct letter, then rewrite false statements to make them true.

T F 1. A virus is a single-cell organism.

T F 2. Antibiotics are drugs that kill bacteria.

T F 3. Ebola is spread from person to person by infected mosquitoes.

T F 4. An epidemiologist is a scientist who studies disease outbreaks.

T F 5. The Hantavirus hantavirus, any of a genus (Hantavirus) of single-stranded RNA viruses that are carried by rodents and transmitted to humans when they inhale vapors from contaminated rodent urine, saliva, or feces. There are many strains of hantavirus.  has been found in Vermont.

Sky Show

Directions: Choose the correct word to complete the sentence.

1. Auroras form when (electrons, solar winds
This article is about a computer game. For the interstellar phenomena, see Solar wind.


Solar Winds I & II were top down, space-based action games released in the early-1990s.
) pass by Earth.

2. Auroras are "born" (150 million kilometers, 2 billion kilometers) from Earth.

3. Astronomers Famous astronomers and astrophysicists include:

Directory: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A
  • Marc Aaronson (USA, 1950 – 1987)
  • George Ogden Abell (USA, 1927 – 1983)
 determine the peak in the sun's 11-year cycle by measuring an increase in (sunspots sunspots, dark, usually irregularly shaped spots on the sun's surface that are actually solar magnetic storms. The Chinese recorded dark features on the sun seen with the naked eye in 28 B.C. , radiation).

4. Auroras get their vibrant colors when high-energy (electrons, protons) from solar plasma collide col·lide  
intr.v. col·lid·ed, col·lid·ing, col·lides
1. To come together with violent, direct impact.

2.
 with Earth's atmosphere “Air” redirects here. For other uses, see Air (disambiguation).

Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly (by molar content/volume) 78% nitrogen, 20.95% oxygen, 0.93% argon, 0.
.

5. Auroras, or aurora borealis aurora borealis (bôr'ēăl`ĭs) and aurora australis (ôstrā`lĭs), luminous display of various forms and colors seen in the night sky. , are most common in the (Northern, Southern) Hemisphere.

High-Tech Defense

Directions: Fill in the blanks.

1. A device built to destroy enemy missiles in space is a --.

2. -- are warhead-like objects designed to fake out interceptors.

3. Special -- radar tracks the warhead and decoys.

4. When a nuclear warhead explodes, -- atoms fuse together, producing --.

5. A nuclear bomb releases waves of --.

ANSWERS

Killers Without Cures

1. False; A virus is a chemical package of genetic material surrounded by a protein shell. 2. True 3. False; Ebola is spread front person to person by contact with infected fluids like blood. 4. True. S. True

Sky Show

1. solar winds 2. 150 million kilometers 3. sunspots 4. electrons 5. Northern

High-Tech Defense

1. kill vehicle 2. decoys 3. X-band 4. hydrogen; helium 5. radioactive energy

Vocabulary Builder, p. TE6

1. microbes 2. Africa 3. epidemic 4. bacteria 5. Lassa 6. Marburg 7. airborne 8. host 9. monkey 10. mouse 11. quarantine Bonus: nucleus

SCIENCE IN THE NEWS QUIZ, p. 26 (student)

1. b 2. a 3. c 4. d 5. d 6. a 7. c 8. d 9. a 10. d
COPYRIGHT 2000 Scholastic, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2000, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Article Details
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Title Annotation:Questions and Answers
Publication:Science World
Date:Oct 2, 2000
Words:334
Previous Article:DEAR TEACHER:.
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