| A | B |
|---|
| Why do we have day & night? | Because of the earth's rotation. |
| Why do the seasons change? | The earth revolves. |
| Why is it colder at the Arctic Circle than the Equator? | Because it is farthest from the Sun. |
| What climate zone covers most of the U.S.? | Tropic of Cancer |
| Why is the Nile River important to Egypt's people? | Water for crops. |
| What is the world's busiest port?s?? | Rotterdam. |
| Why do few people live near the Amazon River? | Because it's too hot and humid. |
| Why is the Chang Jiang flood plain good for farming? | Good rain, rich soil, mild winters and a long growing season. |
| Name 2 crops that grow along the Chang Jiang plain. | Cotton and wheat. |
| What is the Grand Canal? | It is one of the world's greatest wonders, joins the Chang Jiang near East China Sea, oldest canal in the world still in use. |
| Paddies | Rice fields |
| Flood plain | An area formed by river floods. |
| Bamboo | A fast growing giant grass. |
| Shoots | The young, tender branches of a plant. |
| Silk worm. | A kind of caterpillar that spins silk. |
| Junks | Light boats with tall square sails. |
| Sampan | A type of fishing or cargo boat in China. |
| Luxuries | Something expensive that only a few people can afford. |
| Responsibility system | The economic system in China in which each farmer is expected to grow a certain amount of crops, each factory produces amount of goods. |
| Wharves | A platform built along the shore. |
| Amazon River | River that carries rubber and lumber from the Rain Forest. |
| Amazon River | River that carries more water than any other river. |
| Rhine River | The most important waterway in Europe. |
| Rhine River | River links 3 European countries to ocean ports. |
| Nile River | This river crosses the Sahara and flows into the Mediterranean Sea. |
| Nile River | The longest river in the world. |
| Rotterdam | The world's largest port. |
| Aswan High Dam | Helps prevent the Nile River from flooding. |
| North Sea | Where the Rhine River ends. |
| Sahara | The world's largest Desert. |
| Rain Forest | Where trees, vines and other plants grow close together. |
| Axis | Make believe line that the Earth turns on. |
| Why don't the sun's rays reach all parts of the Earth at one time? | The earth rotates so part of it is always moving into dark and light. |
| Match Mississippi River to correct continent. | North America |
| Match Nile River to correct continent. | Africa |
| Match Rhine River to correct continent. | Europe |
| Match Amazon to correct continent. | South America |
| Match Chang Jiang River to correct continent. | Asia |
| Nile River | This river, the longest in the world, flows into the Mediterranean Sea. |
| Chang Jiang River | This river that links China's interior to the sea, flows into part of Pacific. |
| Rhine River | This river flows into the North Sea at Rotterdam, world's largest port. |
| Mississippi River | This river carries tons of goods to market before it empties into the Gulf of Mexico. |
| Amazon River | Hundreds of branch rivers feed this river before it empties into the Atlantic Ocean. |
