Across
- 2. Not simple; it has many tricky parts.
- 4. A large group of people living together with their own rules.
- 5. A scientific test to see what happens.
- 9. To travel or be with a friend.
- 10. An old way of doing things that we still do today.
Down
- 1. "To see something and remember, ""I know that!"
- 3. A brand new thing that someone thought of and created.
- 6. Doing something at the same time or very often.
- 7. To use a machine or make it go.
- 8. Massive! Much bigger than usual.