G u i d e to R e a d i n g Not e s 3 The Ocean Shapes Life in the Pacific Read Section 3, and complete the notes below. • Around the map, write two facts to explain how ocean surface currents work. Draw a line connecting each fact to the appropriate part of the map. An example is done for you. Possible answers: 160°W 140°W 120°W 100°W 80°W 60°W 40°W 20°W 80°N 60°N NORTH AMERICA 60°E EUROPE ASIA Ca ATLANTIC OCEAN Japa n lf S Gu 80°E 100°E 120°E 140°E 160°E tic m C a lif 20°N n Atla 40°E a tre o r nia 40°N th Nor 20°E ry North Pacific 0° Currents moving away from the equator act as heating systems. They warm the air in areas that might otherwise be cooler. na Alaska Trade winds push currents along the equator, where the sun warms the water. Ocean Surface Currents PACIFIC OCEAN AFRICA al North Equatori N or th Eq uatorial 0° Equator South Equatorial 40°S 0 1,500 3,000 kilometers Robinson projection So li a n INDIAN OCEAN l ria to ua Eq AUSTRALIA us ATLANTIC OCEAN h ut tr a azi Br 3,000 miles Peru 1,500 0 l PACIFIC OCEAN 20°S guela Ben SOUTH AMERICA N W s We tA E S 60°S Cold current West Wind Drift West Wind Drift Warm current ANTARCTICA 80°S When warm currents near the equator hit land in the Northern Hemisphere, they turn north. In the Southern Hemisphere, they turn south. Wind moves the water on the ocean’s surface. This creates currents that move in circular patterns, like the winds. • Explain why islands in the Pacific have warm temperatures and lots of rain. Pacific islands are mostly in warm equatorial waters. Warm air can hold a lot of moisture. Warm ocean water evaporates easily to provide that moisture. As the wet, warm air rises, it forms rain clouds. This means the islands in the area have tropical wet climates where it rains a lot. Islands farther from the equator are cooler and drier. • In the space below, quickly sketch and label four resources found in the Pacific. Sketches might include fish (food), sea sponges or marine snails (medicine), oysters (pearls), metal ores, oil, or natural gas. © Teachers’ Curriculum Institute The Pacific Islands: Adapting to Life Surrounded by Ocean 1 G u i d e to R e a d i n g Not e s 4 Life on a Continental Island: New Zealand Step 1: Examine the continental island maps your class created. Take notes below based on what you learn from the maps. Step 2: Read Section 4. Use what you learned in both Sections 2 and 4 to correct and add to your notes below. • Around the drawing of a continental island, write two facts about this type of island. Draw a line from each fact to an appropriate part of the island. Add to the drawing if it helps illustrate your facts. An example is done for you. Answers will vary. • Listed below are four features of New Zealand. Describe each feature. Include at least two facts in each of your descriptions. physical features: Mountains dominate New Zealand’s two large islands. The North Island has rivers, lakes, hot springs, and geysers. On the South Island, the Southern Alps are covered by snow all year, and the west coast has fjords. New Zealand also has lots of fertile land. Large cities can usually be found on continental islands. climate: Temperatures are moderate all year. Most days are sunny, but the islands receive regular rain. The warm, moist winds blow from west to east. The western slopes of the mountains can get more than 200 inches of rain per year. The eastern side gets only 25 inches a year. economy: Sheep are a major industry. Fishing is another important part of New Zealand’s economy. The islands also attract many tourists. human adaptations: Most New Zealanders live on the North Island and in cities. People wear cooler clothes in the summer and warmer clothes in the winter. There is outdoor recreation like skiing, hiking, surfing, sailing, swimming, fishing, kayaking, and white-water rafting. People travel by car, train, bus, and airplane. • Which features make New Zealand a classic continental island? New Zealand was once part of a larger landmass. The movement of tectonic plates broke the landmass apart to form Antarctica, Australia, and several continental islands. Like most continental islands, New Zealand is relatively large. © Teachers’ Curriculum Institute The Pacific Islands: Adapting to Life Surrounded by Ocean 2 G u i d e to R e a d i n g Not e s 5 Life on a Volcanic Island: Tahiti Step 1: Examine the volcanic island maps your class created. Take notes below based on what you learn from the maps. Step 2: Read Section 5. Use what you learned in both Sections 2 and 5 to correct and add to your notes below. Answers will vary. • Around the drawing of a volcanic island, write two facts about this type of island. Draw a line from each fact to an appropriate part of the island. Add to the drawing if it helps illustrate your facts. An example is done for you. • Include at least two facts in each of your descriptions. physical features: Tahiti is made up of two inactive volcanoes, Tahiti Nui (Big Tahiti) and Tahiti Iti (Small Tahiti). An isthmus connects them. The land on both parts rises steeply from the coast to the volcano craters. There are waterfalls and cliffs on the steep land. Volcanic islands are created when volcanoes break through the ocean floor. Lava and ash build up on the ocean floor, rising to above sea level. climate: Tahiti has two seasons. The wet season, from November to April, brings most of the annual rain, and temperatures are in the 80s. During the dry season, from May to October, temperatures are slightly lower. economy: Only Tahiti’s coastal plain is flat enough to grow crops, like breadfruit, coconut palms, citrus fruits, and orchids. Because of its growing population, Tahitians import most of what they eat. The economy depends on the ocean, which attracts tourism, produces black pearls, and supports commercial fishing. human adaptations: Most Tahitians live on Tahiti Nui, where the crowded city of Papeete is. Other parts are less built up, and some people still live in traditional villages. Houses are larger and sturdier than in the past. Casual, modern clothes have replaced the traditional pareu. For recreation, people scuba dive, snorkel, surf, hike, ride horses, and hang glide. They travel to and from Tahiti on planes and use cars and buses on the island. • What features make Tahiti a classic volcanic island? Tahiti is made up of two inactive volcanoes. The volcanoes are cone shaped, with steep slopes rising to high peaks. © Teachers’ Curriculum Institute The Pacific Islands: Adapting to Life Surrounded by Ocean 3 G u i d e to R e a d i n g Not e s 6 Life on an Atoll: Kwajalein Island Step 1: Examine the atoll maps your class created. Take notes below based on what you learn from the maps. Step 2: Read Section 6. Use what you learned in both Sections 2 and 6 to correct and add to your notes below. Answers will vary. • Around the drawing of an atoll, write two facts about this type of island. Draw a line from each fact to an appropriate part of the island. Add to the drawing if it helps illustrate your facts. An example is done for you. • Listed below are four features of Kwajalein Island. Describe each feature. Include at least two facts in each of your descriptions. Atolls have very low elevations. physical features: Kwajalein is the largest coral atoll in the world. Its 97 islands cover only 6.5 square miles. The atoll surrounds a large lagoon. It has a very low elevation. Because the island is so small and low, there are no rivers or springs. climate: Kwajalein has a tropical wet climate. Temperatures are almost always in the 80s, and rain falls daily during both the wet and “dry” seasons. Showers don’t last as long during the drier months. Tropical storms can cause storm surges, but coral reefs protect the islands from flooding. economy: There is little agriculture, but coconut palms, breadfruit, and arrowroot are grown. Copra, or dried coconut meat, is the main product, and fish is an important food. The economy is based on the U.S. military base located on the island. Tourism is also important. human adaptations: Fourteen of the atoll’s islands are inhabited. Most travel on Kwajalein Island is on bicycles, which rust quickly in the wet weather. Ferries and planes link people to the other islands and the outside world. Residents live in trailers, concrete and wooden houses, and dome houses, all of which are owned by the U.S. military. They wear casual, modern clothes and enjoy scuba diving, sailing, windsurfing, sport fishing, and common American activities like volleyball, softball, and bowling. • What features makes Kwajalein Atoll a classic atoll? Kwajalein Atoll is a low-lying ring of coral islands and reefs surrounding a shallow lagoon. © Teachers’ Curriculum Institute The Pacific Islands: Adapting to Life Surrounded by Ocean 4
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