Earth

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Across
  1. 2. An object that orbits around a planet or a star. Artificial satellites are used for communication, weather monitoring, and scientific research.
  2. 4. A vast system of stars, gas, and dust held together by gravity. The Milky Way is the galaxy that contains our solar system.
  3. 5. The expanse of space that appears above the Earth. The sky can be seen during the day as blue and at night as filled with stars and sometimes the moon.
  4. 8. A large, bowl-shaped cavity on the surface of a planet, moon, or asteroid. Craters are often formed by the impact of meteoroids or asteroids.
  5. 9. A large body of saltwater that covers a significant portion of the Earth's surface. Oceans are home to a diverse range of marine life and play a crucial role in regulating the Earth's climate.
  6. 10. The layer of gases surrounding a planet or celestial body. Earth's atmosphere is composed of nitrogen, oxygen, and other trace gases, providing air for breathing and protecting the planet from harmful radiation.
  7. 13. The natural satellite that orbits around the Earth. The Moon can be seen at night and sometimes during the day as a bright object in the sky.
  8. 14. The planet we live on, known as the "blue planet" because of its abundant water. Earth is the third planet from the Sun and is home to a wide variety of plants, animals, and ecosystems.
  9. 15. The star at the center of our solar system. The Sun provides light, heat, and energy to Earth and is essential for supporting life.
Down
  1. 1. A small celestial body that enters the Earth's atmosphere and burns up, producing a streak of light in the sky. Also known as a shooting star.
  2. 3. An instrument used to observe distant objects in the sky. Telescopes can magnify and enhance the visibility of stars, planets, and other celestial bodies.
  3. 6. A natural light display in the sky, particularly in polar regions. Auroras, also known as the Northern or Southern Lights, appear as colorful bands or curtains of light.
  4. 7. A celestial body that orbits around a star. Planets are spherical in shape and do not produce their own light but reflect light from the star they orbit.
  5. 8. A celestial object made up of ice, dust, and gas that orbits the Sun. Comets often have a bright, glowing tail when they get closer to the Sun.
  6. 11. A luminous celestial body that appears as a point of light in the night sky. Stars are made up of hot gases and emit their own light.
  7. 12. An astronomical event that occurs when one celestial body passes between another and casts a shadow. Solar eclipses happen when the Moon blocks the Sun's light.