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- The huge tectonic plates that cover the Earth fit together a bit like pieces in a global puzzle. The Earth’s mantle under the crust is hot and flexible so the plates (puzzle pieces) are able to move, but they do so very, very slowly.
www.sciencelearn.org.nz/resources/1426-the-moving-earth
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As seen from Earth, the planet's orbital prograde motion makes the Sun appear to move with respect to other stars at a rate of about 1° eastward per solar day (or a Sun or Moon diameter every 12 hours).
The Earth has a layered structure made up of crust, mantle, outer core and inner core. Find out more in this BBC Bitesize guide for students aged 11-14.
Sep 18, 2012 · In the Earth-is-stationary model, the Sun needs to change its location in the sky significantly throughout the year: in addition to its once-a-day journey around the Earth, it needs to change...
Oct 20, 2023 · Size: Earth has a diameter of 7,926 miles (12,756 kilometers).Distance from the Sun: Earth is the third planet from the Sun, which is about 93 million miles (150 million km) away.
- Namesake. 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 “the ground.”
- Potential for Life. Earth has a very hospitable temperature and mix of chemicals that have made life abundant here. Most notably, Earth is unique in that most of our planet is covered in liquid water, since the temperature allows liquid water to exist for extended periods of time.
- Size and Distance. With an equatorial diameter of 7926 miles (12,760 kilometers), Earth is the biggest of the terrestrial planets and the fifth largest planet in our solar system.
- 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 to our calendar system, which counts one year as 365 days.
Earth spins at 1000 miles per hour. It takes 24 hours to complete a full rotation. It's daytime on the side of the Earth that faces the Sun and nighttime on the side that is facing away.
Like Mars and Venus, Earth has volcanoes, mountains, and valleys. Earth's lithosphere, which includes the crust (both continental and oceanic) and the upper mantle, is divided into huge plates that are constantly moving.
