Across
- 2. A large group of stars, dust, and gas held together by gravity. Our solar system is part of the Milky Way galaxy. There are billions of galaxies in the universe.
- 4. A large object that orbits around a star. Planets are round and do not produce their own light but reflect light from their star. Earth is a planet.
- 5. The force that pulls objects towards each other. Gravity keeps us on the ground and planets in orbit around the sun.
- 7. An instrument that makes distant objects appear closer and clearer. Telescopes help scientists observe and study stars, planets, and other objects in space.
- 9. An object that orbits around a planet or another celestial body. Satellites are used for communication, weather forecasting, and scientific research.
- 11. A bright point of light in the night sky. Stars are huge balls of hot gas, like our sun. Some stars have planets orbiting around them.
- 12. A planet that orbits a star outside of our solar system. Scientists search for exoplanets to learn more about the possibility of life beyond Earth.
- 13. A vehicle that moves by expelling gas from its engine in one direction. Rockets are used to launch satellites, spaceships, and astronauts into space.
Down
- 1. A special suit worn by astronauts in space to protect them from the vacuum, extreme temperatures, and lack of air. Spacesuits provide oxygen and regulate temperature.
- 3. A person who travels into space. Astronauts wear special suits and go on spaceships to explore and conduct experiments in space.
- 6. A bright streak of light that occurs when a meteoroid enters Earth's atmosphere and burns up due to friction with the air. Also known as a shooting star.
- 8. Station A large structure in space where astronauts live and work. Space stations serve as a base for scientific research and space exploration.
- 10. A round object that orbits around a planet. Our Earth has one moon. It looks bright in the night sky because it reflects the light from the sun.
- 11. System A group of planets, moons, asteroids, and comets that orbit around a star called the Sun. Our solar system includes eight planets, including Earth.
- 14. A ball of ice and dust that orbits the sun. When a comet gets closer to the sun, the heat makes the ice turn into gas, creating a bright glowing tail.