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Introduction References & Edit History Related Topics
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What's the difference between weather and climate?
clouds
A large window looking at a forested exterior, four hand-drawn blue raindrops, and a hand holding a phone displaying a pie chart showing a 60% chance of partly cloudy skies, and a 40% chance of rain.
What causes the seasons?
How do tornadoes form?
See how cloud formation near a low-pressure system or ongoing tropical storm fuels a hurricane
For Students
weather summary
Quizzes
Lightning over a farm field. Weather electricity thunderstorm light energy tree
Facts You Should Know: Weather Quiz
Umbrella colored like a rainbow sticking out above a sea of black umbrellas while it rains. (storm, weather)
Weather Words Vocabulary Quiz
rain. Child in the rain, wearing a rain coat, under a yellow umbrella. April Showers weather climate rain storm water drops
April Showers to March’s Lions and Lambs
Thunderstorm cumulonimbus clouds above Montana. weather storm thunderstorm atmospheric disturbance cumulonimbus clouds thunder and lightning Homepage blog 2011, science and technology
Clouds and Cloud Types
Archaea at Midway Geyser Basin in the Grand Prismatic Spring, Yellowstone National Park, Wyoming. Largest hot spring in Yellowstone, third largest in the world. Temp. 147-188F Dim. 250x380 ft. Archaeon, archeon, Yellowstone Geysers, algae
How the Earth Works: A Quiz
Read Next
Lightning over the outskirts of Oradea, Rom., during the thunderstorm of August 17, 2005.
16 Questions About Earth’s Atmsophere and Weather Answered
Average temperature in the United States during August 2016, weather
What’s the Difference Between Weather and Climate?
Flower. Fruit tree. Cherry. Cherry tree. Cherry blossom. Spring. Close-up of cherry blossoms in bloom.
The Perils of an Early Spring
Lightning over a farm field. Weather electricity thunderstorm light energy tree
Can Lightning Strike the Same Place Twice?
Kansas tornado over field. (twister, strom, weather, clouds)
How Do Tornadoes Form?
Discover
Cheetah (Acinonyx jubatus) standing on rock, side view, Masai Mara National Reserve, Kenya
The Fastest Animals on Earth
Thumbnail for flags that look alike quiz Russia, Slovenia, Iceland, Norway
Flags That Look Alike
Amendments 1-10 to the Constitution of the United States constitute what is known as the Bill of Rights on an American flag.
What Is the Emoluments Clause?
US Marines firing at Fallujah, Iraq, during the Second Battle of Fallujah in November 2004. Operation Iraqi Freedom, Iraq War.
Timeline of the 2000s
The Battle of New Orleans, by E. Percy Moran, c. 1910. Andrew Jackson, War of 1812.
26 Decade-Defining Events in U.S. History
Close up of praying mantis walking on stone ground against a blurred background in Japan
6 Animals That Eat Their Mates
NBA Lakers Celtics Finals Kevin Garnett shooting.
10 Great Sports Rivalries

weather: Media

Videos

What's the difference between weather and climate?
Even in our warming world, there will be some chilly evenings.
Video: Encyclopædia Britannica, Inc.
clouds
How much does a cloud weigh?
Video: © American Chemical Society (A Britannica Publishing Partner)
What does “percentage of rain” actually mean? 
It's not an exact science, but we'd bring an umbrella just in case.
Video: Encyclopædia Britannica, Inc.
What causes the seasons?
In many parts of the world, weather cycles through the four seasons like clockwork:...
Video: Encyclopædia Britannica, Inc.
How do tornadoes form?
Learn how tornadoes form, as explained by John P. Rafferty, earth and life sciences...
Video: Encyclopædia Britannica, Inc.
See how cloud formation near a low-pressure system or ongoing tropical storm fuels a hurricane
John P. Rafferty, earth and life sciences editor of Encyclopædia Britannica,...
Video: Encyclopædia Britannica, Inc.
VIEW MORE in these related Britannica articles: