Across
- 2. – The SI unit of electrical resistance.
- 4. – Bending of light when it passes from one medium to another.
- 6. – The potential difference in an electrical circuit.
- 10. – Movement of particles from high to low concentration.
- 11. – Cell division resulting in four genetically different cells.
- 12. – A neutral subatomic particle in the nucleus.
Down
- 1. – Atoms of the same element with different numbers of neutrons.
- 3. – Basic unit of heredity in living organisms.
- 5. – A substance that speeds up a chemical reaction without being consumed.
- 7. – Conductor through which electricity enters or leaves a substance.
- 8. – Protein that acts as a biological catalyst.
- 9. – A base that dissolves in water.