Across
- 2. substance composed of one type of atom
- 4. strongest bone in the body
- 6. never stops beating
- 7. anything that has mass and volume
- 9. the conversion of a seed to a plant
- 12. used to convert light into energy
- 13. can be either homogeneous or heterogeneous
- 15. lymph tissues in throat
- 16. a person with expert knowledge on one or more of the natural or physical sciences
- 18. transfers food from the mouth to the stomach
- 19. a combination of hydrogen and oxygen
- 20. using liquid under pressure to move an object
- 21. the study of the nature and properties of matter and energy
- 22. the study of the movement of celestial bodies
Down
- 1. element we need to breathe
- 3. represents the combination of elements and compounds
- 5. the process by which plants make food
- 8. extinct bird
- 10. a distinct compound
- 11. a singularity that causes spaghettification
- 14. a large group of extinct lizards
- 17. transformation of an insect from egg to adult