Across
- 2. thing that is most important and needs attention before anything else
- 5. a careful test you do to see if something is true
- 7. people who offer to do something without expecting to be paid
- 10. illness that spreads quickly to a lot of people
- 11. an illness or unhealthy condition
- 15. an idea that explains how something works or why something happens
- 16. send or pass something from one person to another
- 17. something you are working hard to achieve
- 18. a very small living thing that causes illness
Down
- 1. an idea that is suggested as an explanation of something, but that has not yet been proven to be true
- 3. inside
- 4. act of fighting against a leader or government
- 6. flying insects that drink blood from people or animals, able to spread a disease among one another.
- 8. room in which a scientist works
- 9. people who fight against a leader or government
- 12. illness that causes an increase in your body's temperature
- 13. facts or information that proves something is true
- 14. natural environments