Unit 3 Lesson 6 What Factors Affect Climate? Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Florida Benchmarks • SC.5.E.7.5 Recognize that some of the weatherrelated differences, such as temperature and humidity, are found among different environments… • SC.5.E.7.6 Describe characteristics (temperature and precipitation) of different climate zones as they relate to latitude, elevation, and proximity to bodies of water. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Climate vs. Weather • Climate is the long-term weather patterns of a place. • Weather describes what the atmosphere is like at a given time and place. • Scientists find the climate of an area by averaging weather conditions over 30 years or more. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Hot, Cold, and Medium • A climate zone is an area that has similar average temperatures and precipitation throughout. • Three of Earth’s climate zones are tropical, temperate, and polar. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Hot, Cold, and Medium • The tropical, temperate, and polar climate zones are based on distance from the equator. • The equator is the imaginary line that divides Earth into its northern and southern hemispheres, or halves. • An area’s latitude, or distance from the equator, determines what climate zone it is in. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Hot, Cold, and Medium • Tropical climates are found near the equator. • The sun is directly overhead nearly all year. As a result, the area gets a lot of direct heat. • Temperatures in tropical climates are typically greater than 18 °C. • Tropical climates get different amounts of precipitation. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Hot, Cold, and Medium • Temperate climates are found in the middle latitudes. • For most of the year, a temperate climate has temperatures between 10 °C and 18 °C. • Most temperate climates have four seasons. • Temperate climates get different amounts of precipitation. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Hot, Cold, and Medium • Polar climates are farthest from the equator. They are found near Earth’s poles. • Polar climates get little precipitation. They are covered in snow and ice year-round. • Temperatures in polar climates are typically less than 10 °C. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Hot, Cold, and Medium • Identify the tropical, temperature, and polar climate zones on the map below. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Why Climates Differ • Distance from the equator, elevation, closeness to bodies of water, and landforms affect climate. • Locations near the equator are warm, but high elevations can make the climate cooler. • Snowy mountaintops can be found in tropical places because of elevation. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Why Climates Differ • Water heats up and cools down more slowly than land does. • Places near the coast are often cooler in summer and warmer in winter than places far away from the ocean. • The Gulf Stream is a current of warm ocean water that affects the climate in North America and Europe. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Why Climates Differ • A rain-shadow effect can happen when wet air rises and falls on the ocean side of a mountain, creating a wet climate. • As the air moves down the other side of the mountain, it is dry. This creates a dry climate, or rain shadow. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Why Climates Differ • Describe the type of climate that occurs on each side of the mountain in the diagram below. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Climate and the Environment • Climate affects where organisms can live. • Climate affects the nonliving parts of the environment. • Rain, wind, temperature, and other factors can affect the land surfaces and the types of organisms that can live in the area. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Desert • A desert is a dry environment with temperatures that vary greatly. • Living things in deserts need to be able to survive with little water. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Swamps • Swamps can be fresh water, salt water, or both. • Swamps occur in places where the ground cannot soak in all the water that reaches the area. • Temperatures can be very high in swamps for part of the year. Copyright © Houghton Mifflin Harcourt Publishing Company Unit 3 Lesson 6 What Factors Affect Climate? Tropical Rain Forests • Tropical rain forests are found in warm, wet climates. • The amount of sunlight in tropical rain forests is nearly the same year-round. • Vegetation covers most of the land in tropical rain forests. Copyright © Houghton Mifflin Harcourt Publishing Company