Quizzes
The ocean
Looking at our Earth from space, it is obvious that we live on a water planet. Ocean covers over 70 percent of the Earth's surface and contains about 97 percent of the Earth's surface water. How much do you know about our ocean?
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Clouds and aerosols
Clouds and aerosols are two of the most important, but least understood, aspects of climate change. How much do you know about them?
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The air we breathe
Our atmosphere is vital to all living things on our planet. How much do you know about the air we breathe?
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Carbon
Earth has many processes that regulate carbon, atmospheric carbon dioxide and its role in the carbon cycle and climate. How much do you know?
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Our home planet
Earth is an ever-changing place. How much do you know about your home planet?
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Precipitation and the water cycle
How much do you know about how water is cycled around our planet and the crucial role it plays in our climate?
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Warm up
Test your knowledge about global temperature change and its impact on Earth's climate.
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Sea change
Test your knowledge of sea level rise and its effect on global populations.
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How's your energy level?
Test your knowledge of energy, both in our society and in Earth's climate system.
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Soil moisture
Soil moisture is the amount of water contained in the soil. From agriculture productivity to flood and drought prediction, soil moisture on Earth plays a key role in understanding our planet. How much do you know about Earth’s soil moisture?
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Our world, other worlds
Test your knowledge of how Earth is different from other planets, both within our solar system and beyond.
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