World Book Encyclopedia Presents Science Fairs
Subtitle: Ideas and Activities
Publisher: World Book, Inc
Published: 1998
Place of publication: Chicago,Illinois, USA
Language: eng
Format: Hardcover
Number of pages: 80
Table of contents: title: 6 The Best of the Fair; title: 16 Space; title: The universe is your laboratory! Learn how astronomers study the skies. How far does the universe extend? What does it contain? How can you put your knowledge of the universe to practical use?; title: 18   Solar power; title: 20   Living in space; title: 22   Finding stars; title: 24 Dynamic Earth; title: Earth seems eternal, but it is changing-----sometimes dramatically-----every day. Study the way earthquakes and volcanoes can reshape the landscape in minutes. Examine the effects of weathering and erosion. Finally, consider the ways humans impact their planet.; title: 26 Wind direction; title: 28 Shifting plates; title: 30 Rocks; title: 34 Soil; title: 36   Machines and Structures; title: Engineers use science to design and build airplanes, ships, bridges, towers, and domes. Learn how engineers master the difficult task of creating structures that must carry huge loads, last for many years, and be pleasant to look at. See if you can design strong, efficient machines and structures.; title: 38 Submarines; title: 40 Airfoils; title: 42 Boats; title: 44 Bridges; title: 46 Power of shapes; title: 48  World of Plants; title: Explore the vital world of plants. The oxygen that humans breathe comes from plants, and most of the food we eat comes from plants or animals that eat plants. Study the oxygen cycle, plant life, the diversity of species and their habitats, and the many fascinating uses we have for plants.; title: 50  Classifying plants; title: 54  Plant growth; title: 58  Decay; title: 60  Natural dyes; title: 64  Sound; title: Sound can blow out candles and crack glass. Bats use sound to "see" in the dark to find their way around. Investigating sound can be fun and exciting. Find out how sounds travel through the air, through walls, and around corners. How can it be captured and recorded? What makes a room soundproof?; title: 66  Reflecting sound; title: 68  Traveling sound; title: 70  Recording sound; title: 72  Radio waves; title: 74  Scope and sequence; title: 76  Glossary; title: 79  Index; title: 80  Find Out More