Across
- 3. — A series of repeating events
- 4. — Automatic body response
- 5. — Organ producing insulin
- 6. — Ability to store electric charge
- 7. — Water movement across a semipermeable membrane
- 9. — Visible electromagnetic wave
- 13. — Natural environment of an organism
- 17. — Optical device refracting light
- 18. — Combination of two or more atoms
- 20. — The basic unit of life
- 21. — Male reproductive cell
- 23. — Simple carbohydrate compound
- 24. — Gas changing to liquid
- 27. — Bending of light
- 28. — Size or extent of a quantity
Down
- 1. — Process of ovum formation
- 2. — Emission of light by a substance
- 3. — Substance increasing reaction rate without permanent change
- 5. — Essential nutrient for body tissues
- 8. — Anything with mass and volume
- 10. — Force of attraction between masses
- 11. — Group of cells with similar function
- 12. — Study of substances and reactions
- 14. — Phenomenon related to electric charge
- 15. — Chemical substance regulating body processes
- 16. — Electrical component limiting current
- 19. — Biological catalyst speeding up chemical reactions
- 22. — The ability to do work
- 25. — A disturbance transferring energy
- 26. — Smallest unit of matter in chemical elements