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  1. Science Mission Directorate
    https://science.nasa.gov/earth/facts

    Facts About Earth - NASA Science

    • The name Earth is at least 1,000 years old. All of the planets, except for Earth, were named after Greek and Roman gods and goddesses. However, the name Earth is a Germanic word, which simply means “t… See more

    Potential For Life

    Earth has a very hospitable temperature and mix of chemicals that have made life abundant … See more

    Science Mission Direct…
    Size and Distance

    With a radius of 3,959 miles (6,371 kilometers), Earth is the biggest of the terrestrial planets and the fifth largest planet overall. From an average distance of 93 million mile… See more

    Science Mission Directorate
    Orbit and Rotation

    As Earth orbits the Sun, it completes one rotation every 23.9 hours. It takes 365.25 days to complete one trip around the Sun. That extra quarter of a day presents a challenge t… See more

    Science Mission Directorate
    In Depth | Earth – NASA Solar System Exploration
    NASA Solar System Exploration
    What Is Earth? (Grades 5-8) - NASA
    NASA
    Feedback
    Content
    Potential For Life
    Size and Distance
    Orbit and Rotation
     

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  2. Facts about Earth according to NASA12345:
    • Earth is the third planet from the Sun and the only one known to support life.
    • It is a terrestrial planet, small and rocky, with liquid water on the surface.
    • Earth's atmosphere contains nitrogen and oxygen.
    • It is the fifth-largest planet in the solar system.
    • NASA satellites provide data on Earth's land, water, air, temperature, and climate.
    Learn more:
    Our home planet is the third planet from the Sun, and the only place we know of so far that’s inhabited by living things. While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface.

    In Depth | Earth – NASA Solar System E…

    solarsystem.nasa.gov/planets/earth/in-depth.amp
    Earth is a terrestrial planet. It is small and rocky. Earth's atmosphere is the right thickness to keep the planet warm so living things like us can be there. It’s the only planet in our solar system we know of that supports life. It is mostly nitrogen, and it has plenty of oxygen for us to breathe.

    All About Earth | NASA Space Place – N…

    spaceplace.nasa.gov/all-about-earth/en/
    Earth is the fifth-largest planet in the solar system. Its diameter is about 8,000 miles. And Earth is the third-closest planet to the sun. Its average distance from the sun is about 93 million miles. Only Mercury and Venus are closer. Earth has been called the “Goldilocks planet.”

    What Is Earth? (Grades 5-8) - NASA

    www.nasa.gov/learning-resources/for-kids-and-stu…
    For more than 50 years, NASA satellites have provided data on Earth's land, water, air, temperature, and climate. NASA's Earth Information Center allows visitors to see how our planet is changing in six key areas: sea level rise and coastal impacts, health and air quality, wildfires, greenhouse gases, sustainable energy, and agriculture.

    Earth - NASA Science

    science.nasa.gov/earth/
    While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal.

    Facts About Earth - NASA Science

    science.nasa.gov/earth/facts
     
  3. NASA Space Place
    https://spaceplace.nasa.gov/all-about-earth/en

    All About Earth | NASA Space Place – NASA Science for Kids

     
  4. NASA Solar System Exploration
    https://solarsystem.nasa.gov/planets/earth/in-depth.amp

    In Depth | Earth – NASA Solar System Exploration

  5. NASA
    https://www.nasa.gov/.../what-is-earth-grades-5-8

    What Is Earth? (Grades 5-8) - NASA

  6. Science Mission Directorate
    https://science.nasa.gov/earth

    Earth - NASA Science

    NASA's Earth Information Center allows visitors to see how our planet is changing in six key areas: sea level rise and coastal impacts, health and air quality, wildfires, greenhouse gases, sustainable energy, and agriculture.

  7. NSSDCA
    https://nssdc.gsfc.nasa.gov/.../earthfact…

    Earth Fact Sheet - NSSDCA

    Terrestrial Atmosphere. Surface pressure: 1014 mb. Surface density: 1.217 kg/m 3. Scale height: 8.5 km. Total mass of atmosphere: 5.1 x 10 18 kg. Total mass of hydrosphere: 1.4 x 10 21 kg. Average temperature: 288 K (15 C) Diurnal …

  8. NASA
    https://www.nasa.gov/.../what-is-earth-grades-k-4

    What Is Earth? (Grades K-4) - NASA

  9. Science Mission Directorate
    https://science.nasa.gov/earth/explore

    Explore Earth Science - NASA Science

    Most of all, we look at Earth as a system, examining the cycles and processes—the water cycle, the carbon cycle, ocean circulation, the movement of heat—that interact and influence each other in a complex, dynamic dance …

  10. NASA
    https://www.nasa.gov/ebooks/earth

    Earth - NASA

  11. NASA Space Place
    https://spaceplace.nasa.gov/menu/kids/earth

    Earth | NASA Space Place – NASA Science for Kids

  12. Science Mission Directorate
    https://science.nasa.gov/resource/earth

    Earth - NASA Science

  13. NASA Climate Kids
    https://climatekids.nasa.gov/10-things-earth

    10 Interesting Things About Earth - NASA Climate Kids

  14. natgeokids.com
    https://www.natgeokids.com/.../facts-about-the-earth

    Facts about the Earth! | Science | National Geographic Kids

  15. nasa.gov
    https://www3.nasa.gov/specials/60counting/earth.html

    NASA: 60 Years & Counting - Learning About Earth From Space

  16. Britannica
    https://www.britannica.com/place/Earth

    Earth | Definition, Size, Composition, Temperature, Mass, & Facts ...

  17. National Geographic
    https://www.nationalgeographic.com/science/article/earth

    Planet Earth facts and information - National Geographic

  18. NASA
    https://www.nasa.gov/general/what-is-earths-atmosphere

    What Is... Earth's Atmosphere? - NASA

  19. Science Mission Directorate
    https://science.nasa.gov/mars/facts

    Mars Facts - Science@NASA

  20. Climate Change: Vital Signs of the Planet
    https://climate.nasa.gov/nasa_science

    Earth System Science | NASA Science – Climate Change: Vital …

  21. NASA
    https://www.nasa.gov/missions/terra/earth-from...

    Earth From Space: 15 Amazing Things in 15 Years - NASA

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