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Are you science literate?

If you've been reading SW, there's no need to sweat your sci.I.Q. (see "Science you can use," p. 5). The answers to the questions below are all in our pages--and that's just the first six issues of the year!

Circle the correct answer.

1. In modeling the structure of DNA 40 years ago, Watson and Crick helped show

a. how to split atoms b. how organic ladders work c. how tratis are inherited

2. If you wanted to line on the class of organisms with the greates number of species, you'd eat

a. fish b. insects c. fungi

3. [underscore] dispersal is a strategy that helps [underscore] aoid [underscore].

a. seed/plants/competition b. nest/birds/habitat loss c. offspring/cheetahs/genetic uniformity

4. The length of a planet's year is determined in part by

a. the length of its path around the Sun b. the planet's atmopheric composition c. the angle of the planet's tilt

5. Which wouldn't you find at the mid-ocean ridge?

a. a plate boundary b. an ecosystem boundary c. oozing lava

6. By reflecting solar energy into space, clouds

a. recycles gases b. avoid bursting c. help cool Earth

7. Air resistaNce explains why a flat piece of paper falls [underscore] than a crumpled piece.

a. with more twists and turns b. more quitely c. more quickly

8. According to Newton's law of inertia, a race car won't change direction unless you

a. apply a force b. show down in the turns c. give it some gas

9. The term "greenhouse effect" explains

a. why parked cars get so hot in the summer b. why Earth is habitable c. both a and b

10. Which is not true of trees in an old-growth ecosystem?

a. they emit oxygen b. they provide habitat c. they can easily regrown

11. An experiment is nothing more than a way to

a. learn the scientific method b. organize a research question c. put a hypothesis to the test

12. A well-designed experiment requires all but

a. multiple trials b. professional equipment c. controls
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Copyright 1994, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

Article Details
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Publication:Science World
Date:Jan 14, 1994
Previous Article:Trading species.
Next Article:One photogenic planet.

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