Across
- 4. to be present
- 5. a scientific test
- 7. quickly and nervously
- 9. a person who believes that good things will happen
- 10. to make something better
Down
- 1. slowly doing something because you are not sure
- 2. not clear
- 3. something to cure an illness
- 6. a container like a cylinder
- 8. to move fast