Across
- 6. A person who travels to space. Astronauts undergo rigorous training and wear special suits to survive in the harsh conditions of space.
- 7. A small particle from space that enters Earth's atmosphere and burns up, creating a streak of light known as a shooting star.
- 9. A celestial object composed of ice, dust, and gas that orbits the Sun. Comets often have a glowing tail and can be seen in the night sky for a limited period.
- 10. An optical instrument used to observe distant objects in space. Telescopes can reveal details of planets, stars, galaxies, and other celestial phenomena.
- 12. The force that pulls objects toward each other. Gravity keeps planets in orbit around the Sun and gives weight to objects on Earth.
- 13. An astronomical event in which one celestial body obscures another. Solar eclipses occur when the Moon blocks the Sun, and lunar eclipses occur when Earth's shadow falls on the Moon.
- 15. A powerful explosion that occurs at the end of a star's life. Supernovae release an enormous amount of energy and can briefly outshine an entire galaxy.
Down
- 1. A large celestial body that orbits around a star. Planets are spherical in shape and can be made of rock, gas, or a combination of both. Earth is one of the planets in our solar system.
- 2. The natural satellite of Earth. It orbits around our planet and can be seen at night. It appears as a bright, round object in the sky.
- 3. A rocky object that orbits the Sun and is smaller than a planet. Asteroids are found in the asteroid belt between Mars and Jupiter.
- 4. A luminous celestial body that appears as a tiny point of light in the night sky. Stars emit their own light and are scattered across the universe.
- 5. A vehicle propelled by rocket engines that carries objects and people into space. Rockets provide the necessary thrust to overcome Earth's gravity.
- 7. A meteor that survives its passage through Earth's atmosphere and lands on the surface. Meteorites can provide valuable information about the composition of space.
- 8. A massive collection of stars, gas, dust, and other celestial objects held together by gravity. The Milky Way is the galaxy in which our solar system resides.
- 11. The path followed by an object as it revolves around another object in space. Planets, moons, and satellites all have their own orbits.
- 14. The star at the center of our solar system. It provides heat and light to Earth and is responsible for day and night.