Across
- 3. a form of energy that enables us to see
- 5. A chemical that gives off hydrogen ions in water and forms salts by combining with certain metals
- 6. a powerful, rotating storm with sustained winds of 74 mph or higher that forms over tropical or subtropical waters
- 8. a group of two or more atoms bonded together through chemical bonds
- 11. The basic unit of life
- 13. the degree of hotness or coldness of an object
- 14. The change of an object's position over time
- 16. The smallest unit of an element that retains it's chemical properties
Down
- 1. a change in the sequence of an organism's DNA
- 2. a region in space with such strong gravity that nothing, not even light, can escape its pull
- 4. a substance that can accept hydrogen ions (H+) in solution or that can donate a pair of electrons
- 7. the branch of science that studies the properties, composition, and structure of matter, including how it interacts with energy and how it changes
- 8. coherent, typically large body of matter with no definite shape
- 9. A push or pull that can cause an object to change speed, direction, or shape
- 10. the capacity to do work
- 12. the wearing away and removal of Earth's surface materials
- 15. a disturbance that transfers energy through a medium or space without transferring matter