Chapter 4 Crossword
Across
3. a pure substance created by combining two or more elements.
6. a solid in which the constituent atoms have a regular arrangement.
9. a property of matter that depends on both the mass of a substance and the effects of
gravity on that mass.
12. a property that is not dependent on the size of an object.
13. a constant property of matter that reflects the amount of material present.
14. a state of matter in which molecules are in contact with one another but are not
rigidly held in place.
15. a small packet of electromagnetic radiation energy.
17. a bright halo observed near the border of a particle immersed in a liquid of a
different refractive index.
21. a solid in which the constituent atoms or molecules are arranged in random or
disordered positions.
23. the number of waves that pass a given point per second.
24. glass that is strengthened by introducing stress through rapid heating and cooling of
the glass surfaces.
25. a high energy, short wavelength form of electromagnetic radiation.
Down
1. colored light ranging from red to violet in the electromagnetic spectrum.
2. the ratio of the speed of light in a vacuum to its speed in a given substance.
4. the separation of light into its component wavelengths.
5. a fracture in glass that extends outward like the spoke of a wheel from the point of
impact.
7. a state of matter in wich the molecules are held closely together in a rigid state.
8. a state of matter in which the attractive forces between molecules are small enough to
permit them to move with complete freedom.
9. the distance between crests of adjacent waves.
10. the bending of a light wave as it passes from one medium to another.
11. the smallest unit of an element.
16. a physical property of matter that is equivalent to the mass per unit of volume.
18. acronym for light amplification by stimulated emission of radiation.
19. a fracture in glass that forms a rough circle around the point of impact.
20. a physical change from the solid state directly into the gaseous state.
22. two sheets of ordinary glass bonded together with a plastic film.