Across
- 2. first or most important
- 5. helpful or good
- 6. relating to the mind
- 7. survey to ask a large number of people the same set of questions
- 8. a plan or method for achieving a goal
- 9. the way muscles move together to do an action
- 10. a relationship or connection
- 13. difficult in an interesting or enjoyable way
- 16. take part in an activity or connect in some way
- 18. having a strong effect
Down
- 1. relating to the body; can be touched
- 3. necessary or needed
- 4. to do something to cause a change in a situation
- 5. an unusual event
- 11. an explanation for how or why something happens
- 12. having to do with sight
- 14. not seen
- 15. harmful, bad, not pleasant
- 17. the number of times something happens