Across
- 4. the smallest identifiable unit of an element
- 5. the energy of a body that is associated with its position or the arrangement of it parts
- 6. a type of kinetic energy associated with the temperature-dependent random movement of atoms and molecules
- 9. energy associated with the flow of electric charge
- 13. describes a process that releases heat energy
- 18. the energy associated with chemical changes
- 19. two or more atoms joined in a specific arrangement by chemical bonds
- 20. a state of matter in which atoms or molecules are packed close to each other but are free to move around and by each other
- 21. a law stating that energy can be neither created nor destroyed
- 24. a mixture that has the same composition throughout
- 25. a type of solid matter with atoms or molecules arranged in a well-ordered, three-dimensional array with long-range, repeating order
- 27. energy associated with the motion of an object
- 30. able to occupy a smaller volume when subjected to increased pressure
- 31. a change in which matter changes its composition
- 33. a type of solid matter in which atoms or molecules do not have long-range order
- 34. a substance composed of two or more elements in fixed, definite proportions
- 35. a final substance produced in a chemical reaction; represented on the right side of a chemical equation
- 38. the result of a force acting on a distance
- 39. a characteristic we use to distinguish one substance from another
- 40. an initial substance in a chemical reaction, represented on the left side of a chemical equation
Down
- 1. tending to vaporize easily
- 2. a change in which matter does not change its composition, even though its appearance might change
- 3. a property that a substance displays without changing its composition
- 7. the process by which one or more substances transform into different substances via a chemical change
- 8. the amount of energy required to raise the temperature of 1 g or water by 1 C
- 9. a substance that cannot be broken down into simpler substances
- 10. a substance composed of two or more different types of atoms or molecules combined in variable proportions
- 11. a property that a substance can display only through changing its composition
- 12. a mixture that has two or more regions with different compositions
- 14. the transfer or exchange of thermal energy caused by a temperature difference
- 15. a method of separating a mixture composed of a solid and a liquid in which the mixture is poured through filter paper held in a funnel to capture the solid component.
- 16. a substance composed of only one type of atom or molecule
- 17. a way to separate mixtures in which the mixture is heated to boil off the more volatile component
- 22. the capacity to do work
- 23. a state of matter in which atoms or molecules are widely separated and free to move relative to one another
- 26. one of the three forms in which matter can exist; solid, liquid, and gas
- 28. a way to separate a mixture in which one layer is carefully poured off of another layer
- 29. a unit of energy equal to 3.6 million joules
- 32. describes a process that absorbs heat energy
- 36. anything that occupies space and has mass
- 37. a state of matter in which atoms or molecules are packed close to each other in fixed locations