Science in the News Quiz.

Directions: Read the late-breaking science news stories in our Science News section on pages 4-7. Then, test your knowledge by answering the questions below. Circle the correct letter.

1. New research shows dolphins greet each other by

a. signature whistles. b. flipper waves. c. blowing through their blowhole. d. nods.

2. Using spray-on skin makes healing wounds

a. scar-free. b. rapid. c. painless. d. a and b

3. The dermis is made of collagen, which is:

a. muscles. b. blood vessels. c. scars. d. stringy protein fibers.

4. A waterspout is a

a. coastal tornado, b. high-tech hose. c. sudden rain shower. d. ground water source.

5. The first food-powered robot runs on:

a. apples b. fish c. sugar lumps d. milk

6. The world largest organism is

a. Shaquille O'Neal. b. a fungus. c. a whale shark. d. the Sun.

7. What's causing the Titanic to rot?

a. seawater b. pressure c. microbes d. all

8. The forest fires of summer 2000 were caused by

a. cigarettes. b. barbecues. c. drought. d. arson.

9. Exoplanets are

a. dead planets. b. planets outside our solar system. c. planets larger than the Sun. d. planets smaller than the Sun.

10. In the last 12 U.S. presidential elections, ten of the winners were

a. the taller candidate. b. the older candidate. c. the shorter candidate. d. the more handsome candidate.