Across
- 2. An object that orbits around a planet or a star. Artificial satellites are used for communication, weather monitoring, and scientific research.
- 4. A vast system of stars, gas, and dust held together by gravity. The Milky Way is the galaxy that contains our solar system.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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. 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
