01480cam a2200253 4500 75489015 TxAuBib 20110516120000.0 091113t20112010||||||||||||||||||||eng|u 2009045109 9781599205632 lib. bdg. 1599205637 lib. bdg. DLC DLC SOM DLC TxAuBib Times, tides, and revolutions / Nicolas Brasch. Mankato, Minn : Smart Apple Media, 2011. ©2010. 32 p. : col. ill. ; 29 cm. Includes index. Understanding the world through science -- The science behind time, tides, and revolutions -- Why did people once think the Earth was flat? -- How did we work out that the Earth revolved around the sun? -- How long does it take for the Earth to orbit the sun? -- What causes the seasons to change? -- Why are there 12 months in a year? -- Why are there 24 hours in a day? -- How was time measured before there were clocks? -- How accurate is the most accurate clock on Earth? -- What is the international date line? -- Why do some places use daylight saving time? -- Why don't we fall off the face of the Earth? -- What causes tides? -- What is the difference between a solar eclipse and a lunar eclipse? 20110516. Time. Earth Rotation Juvenile literature. Earth Rotation.