Across
- 1. the first day of the week
- 3. a study about nature
- 6. science of energy and matter
- 9. has lots of salt water
- 11. a scientific test
- 13. everything around us
- 15. scientific ______ should be supported by experimental results
Down
- 2. something that already existed, but nobody found before
- 4. something new and useful that is created from discoveries
- 5. when something is not the same.
- 7. 化学
- 8. when you know something
- 10. 100 years
- 12. can you _____ a house?
- 14. study of living things
- 16. someone who knows things well