Across
- 4. Liquid metal once used in thermometers, toxic to humans
- 7. Physicist known as the “father of the atomic bomb."
- 8. Trait that improves an organism’s ability to survive and reproduce in its environment
- 11. Mixture of two or more metals to enhance strength or resistance
- 12. One of two or more versions of a gene found at the same locus
- 16. Type of reaction that absorbs heat from its surroundings
- 17. Tendency of an object to resist changes in its motion
- 20. The rarest naturally occurring metal, highly radioactive and unstable
- 22. Ancient Greek physician regarded as the “father of medicine.”
- 24. A permanent change in an organism’s DNA sequence
- 25. Planet often called Earth’s twin due to its similar size and composition
- 26. Element used in computer chips and sand alike
Down
- 1. Rate of change of position in a specific direction
- 2. Element forming the basis of all known life on Earth
- 3. The organ that named itself
- 5. Light-sensitive layer at the back of the eye that converts images into nerve signals
- 6. Site of the catastrophic 1986 nuclear reactor explosion in Ukraine
- 9. Emitting energy as particles or waves from an unstable nucleus
- 10. Type of radiation that includes visible light, X-rays, and radio waves
- 13. Nuclear process where an atom splits, releasing energy
- 14. Soft, golden metal used in atomic clocks for its precise frequency
- 15. Vast cloud of gas and dust in space where stars are born
- 16. The only known planet to support life
- 18. A statement that contradicts itself yet may reveal a deeper truth
- 19. Silvery-white metal often used to make stainless steel and coins
- 21. Rapidly spinning neutron star that emits beams of radiation
- 23. Scale measuring the acidity or alkalinity of a solution