Across
- 1. Very cold.
- 6. To try to catch or follow something, or to work toward a goal.
- 7. A small flowing body of water.
- 9. A huge group of stars, planets, and space dust held together by gravity.
- 10. The science of flying airplanes and spacecraft.
- 11. Ways something is used in real life.
- 12. A very sad event that causes great loss or suffering.
Down
- 2. The force that pulls objects toward each other, like Earth pulling us to the ground.
- 3. The work of designing and building things like machines, bridges, or technology.
- 4. A place where scientists study the sky, stars, and planets.
- 5. People who leave their homes to stay safe from danger or hardship.
- 8. An object that moves around a planet, like the Moon around Earth.