Across
- 3. something scientists make to answer questions
- 6. an arrangement of stars as seen from Earth
- 7. to make a picture in your mind using information
- 8. the only star in our solar system
Down
- 1. a scientist who studies objects in the universe
- 2. an attempt to find out about something
- 4. system: the sun, the planets that orbit the sun
- 5. a period of time that is 24 hours long
