University Corporation for Atmospheric Research
Ucar: Where Thunderstorms Happen
Some places in the United States have more thunderstorms that other areas. What is the average number of thunderstorm days in your state?
University Corporation for Atmospheric Research
Ucar: Effects of Air Pollution
Air pollution affects all things. It is harmful to our health, and it impacts the environment. Greenhouse gas pollution affects the entire planet.
University Corporation for Atmospheric Research
Ucar: Sort It Out: El Nino or La Nina
Sort pictures of El Nino and La Nina conditions based on sea-surface temperatures.
University Corporation for Atmospheric Research
Ucar: Ruler of the World
You are now King or Queen of the World and your loyal subjects need your help. You must choose a new mix of energy sources to limit emissions while generating enough energy for your subjects and keeping costs low.
University Corporation for Atmospheric Research
Ucar: Air Pollution: How We're Changing the Air
Learn about the six main types of human-made air pollutants and their sources.
University Corporation for Atmospheric Research
Ucar: What's in the Air?
Air is a mixture of naturally occurring gases and human-made air pollutants. Learn more about these gases and the role they play in our atmosphere.
University Corporation for Atmospheric Research
Ucar: Drawing Clouds Inside the Lines
In this classroom activity, learners investigate how clouds change over time by making repeat observations of a section of sky and then representing their data graphically.
University Corporation for Atmospheric Research
Ucar: Air Quality and Climate Change
Air pollutants have an impact on our planet's climate. Some pollutants cause the climate to warm, while others cause a temporary cooling effect.
University Corporation for Atmospheric Research
Ucar: Sun & Space Weather Memory Game
Test your memory while you learn about the Sun, space weather, and Earth's magnetosphere and upper atmosphere.
University Corporation for Atmospheric Research
Ucar: Carbon Monoxide
Discover interesting facts about carbon monoxide which is a colorless, odorless, tasteless gas. It is also flammable and is quite toxic to humans and other oxygen-breathing organisms
University Corporation for Atmospheric Research
Ucar: Sun Sorting Game
Sort pictures of the Sun and its features by temperature or by time in the sunspot cycle.
University Corporation for Atmospheric Research
Ucar: Nitrogen Oxides
Learn interesting facts about nitrogen oxides, gases whose molecules are made of nitrogen and oxygen atoms and contribute to air pollution.
University Corporation for Atmospheric Research
Ucar: Air Pollution Solutions
While air pollution is a serious problem, it is a problem that we can solve. Learn about actions people can take to reduce emissions and improve air quality.
University Corporation for Atmospheric Research
Ucar: Hydrocarbons
Learn about "hydrocarbons", chemical compounds whose molecules are made up entirely of carbon and hydrogen atoms.
University Corporation for Atmospheric Research
Ucar: Ozone
Learn what ozone is, where it is found, and why it is important.
University Corporation for Atmospheric Research
Ucar: The Sun's Corona (Upper Atmosphere)
The corona is the outer atmosphere of the Sun and is hidden by the bright light of the Sun's surface.
University Corporation for Atmospheric Research
Ucar: The Sun's Atmosphere
Learn about the parts of the sun's atmosphere.
University Corporation for Atmospheric Research
Ucar: Biogeochemical Cycles
The ways in which an element or compound such as water moves between its various living and nonliving forms and locations in the biosphere is called a biogeochemical cycle. All of the atoms that are building blocks of living things are a...
University Corporation for Atmospheric Research
Ucar: How Thunderstorms Form
Have you ever wondered about what atmospheric conditions are needed for a thunderstorm to form? Here you can learn about the three stages.
University Corporation for Atmospheric Research
Ucar: Make a Hurricane
The temperature of the sea, moisture in the air, and high winds all play a role in making a hurricane stronger or weaker. Drag the hurricane over the ocean to see what happens.
University Corporation for Atmospheric Research
Ucar: "Parts" of the Sun
Learn about the sun's three main regions: the Sun's interior, the solar atmosphere, and the visible "surface" of the Sun.
University Corporation for Atmospheric Research
Ucar: Solar Filaments
Solar filaments are dark lines or curves that sometimes appear in pictures of the Sun. Here you can learn all about them.
University Corporation for Atmospheric Research
Ucar: Thermosphere Overview
Provides an overview of the thermosphere, a layer of the Earth's atmosphere.
University Corporation for Atmospheric Research
Ucar: Sunspots
Read all about sunspots, dark, planet-sized regions that appear on the "surface" of the Sun.