Activities - Xpeditions @ nationalgeographic.com
Your Mission Become a season sleuth. Learn the long and short of the changing of the seasons, then test your knowledge with our cosmic map. Briefing In most regions of the Earth, the cycle of the year can be separated into four distinct seasons: summer, autumn, winter, and spring. Each season brings with it distinct changes in weather, temperatures, and length of daylight. If your answer is yes, you're not the only one. The ancient Greeks thought that the seasons owed their existence to an unfortunate marriage between Persephone (per–SEFF–uh–nee), the daughter of the goddess of the harvest, and Hades (HAY–deez), the god of the underworld. If you asked ancient Navajo Indians, they would tell you that the seasons are caused by Estsanatlehi, the wife of the sun god Tsohanoai. The Earth rotates on an axis that is tilted. The changing position of the Earth's tilt is the reason for the differences in temperature and length of daylight that distinguish the seasons.
Science for Kids: Grasslands Biome
The grasslands biome can be divided up into the temperate grasslands and tropical grasslands. On this page we will discuss the temperate grasslands. Tropical grasslands are also called savannas. What are grasslands? Grasslands are wide expanses of land filled with low growing plants such as grasses and wildflowers. Where are the major world grasslands? Grasslands are generally located between deserts and forests. Types of Temperate Grasslands Each major area of grasslands in the world has its own characteristics and is often called by other names: Prairie - Grasslands in North America are called the prairies. A variety of animals live in the grasslands. The North American plains were once full of bison. Plants in the Grasslands Different kinds of grass grow in different areas of the grasslands. Types of grasses that grow here include buffalo grass, blue grama grass, needle grass, big bluestem, and switchgrass. Fires Wildfires can play an important role in the biodiversity of the grasslands.
KDE Santa Barbara
Location | Weather | Plants | Animals | People | Links LOCATION: The name for this biome, temperate grasslands, is a great description for what it is like here. WEATHER: Temperatures in this biome vary greatly between summer and winter. PLANTS: Grasses dominate temperate grasslands. ANIMALS: All grasslands share a lack of shelter from predators, and an abundance of grass for food; therefore, grassland animal populations are similar throughout the world. PEOPLE AND THE TEMPERATE GRASSLAND: One of the main environmental concerns regarding temperate grasslands is the conversion of grassland to farmland. The Grassland Biome Geography for Kids: Grassland Biomes Grassland Explorer Blue Planet Biomes: Grasslands Prairies in the Prairie State What’s it like where you live? Back to Biomes Index
Lesson Plans - Seasons: Why It's Essential
Grades 9-12 Overview: High school students should have a clear understanding of why the seasons occur and should be able to articulate this concept to others. This lesson reinforces this knowledge by having students review the basics of the seasons and design their own monuments to keep track of and commemorate the seasons. Connections to the Curriculum: Geography, earth science, history Connections to the National Geography Standards: Standard 7: "The physical processes that shape the patterns of Earth's surface" Standard 17: "How to apply geography to interpret the past" Time: Two to three hours Materials Required: Computer with Internet access Writing and drawing materials Objectives: Geographic Skills: Asking Geographic Questions Acquiring Geographic Information Organizing Geographic Information Answering Geographic Questions Analyzing Geographic Information S u g g e s t e d P r o c e d u r e Opening: Tell students that they are going to design their own monuments to the seasons.
sweet clovers
Grassland : Mission: Biomes
Temperature Dependent on latitude, yearly range can be between -20°C to 30°C Precipitation About 500 to 900 mm of rain per year Vegetation Grasses (prairie clover, salvia, oats, wheat, barley, coneflowers) Location The prairies of the Great Plains of North America, the pampas of South America, the veldt of South Africa, the steppes of Central Eurasia, and surrounding the deserts in Australia Other Found on every continent except Antarctica Example: Ingeniera White, Argentina Description Grasslands are generally open and continuous, fairly flat areas of grass. The height of grass correlates with the amount of rainfall it receives. The grasses die back to their roots annually and the soil and the sod protect the roots and the new buds from the cold of winter or dry conditions.
Climate Maps - Temperature Latest
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cone flower
The Lost Seasons - Features - The Lab - Australian Broadcasting Corporation's Gateway to Science
Hundreds of years ago, the seasons in Australia were marked by local events like sharks breeding and wattle flowering. The indigenous people had a good empirical knowledge of their local weather. Today science is finally acknowledging the validity of indigenous weather knowledge. Danny Kingsley reports on the new partnership between ancient wisdom and modern science. Australia is a large continent, with very different weather patterns all over it, yet since European occupation, the 'traditional' view of the weather has been that of the Northern Hemisphere, with four seasons; Spring, Summer, Winter and Autumn. Some people argue that Canberra is one of the only places in the country that can genuinely claim to experience all four seasons. Everywhere else, the weather is localised and different. Of course, those people who have lived in the country for thousands of years take a very different approach to the weather, tied up as it is with food supply, shelter and the land in general.
