Across
- 1. to do research on a topic
- 6. to successfully do sg after working hard for it
- 7. a big discovery in sg after solving a difficult problem
- 8. a test or trial carried out to discover sg
Down
- 1. a small part or example of sg that represents the whole
- 2. a machine that makes copies of documents or pictures
- 3. a book or guide that explains how to use a machine or a device
- 4. a new thing or idea that is created for the first time
- 5. a device used to give power to phones or laptops
- 9. to show that sg is true by giving facts or evidence