Changes in Energy on the Molecular Level - Vocabulary

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Across
  1. 3. energy The total kinetic energy of the tiny particles that make up matter.
  2. 5. A state of matter with indefinite volume and shape.
  3. 8. To strike or hit something with any amount of force.
  4. 10. A single substance, either an element or a compound, with definite composition and properties.
  5. 12. The simplest unit of a chemical compound that can exist, formed when two or more atoms join together chemically.
  6. 13. Anything that has volume and mass.
  7. 14. Not chemically reactive; used to describe a substance.
  8. 15. Force exerted on matter through contact with other matter; affects melting and boiling points.
Down
  1. 1. Energy of motion.
  2. 2. To move rhythmically and steadily; oscillate.
  3. 4. The smallest particle of an element; made of protons, electrons, and neutrons.
  4. 6. Distinct forms of matter known in everyday experience: solid, liquid, and gas; also referred to as phases.
  5. 7. Average kinetic energy of all the particles in a material; measured by a thermometer in degrees.
  6. 9. A state of matter with a definite volume but no definite shape.
  7. 11. A state of matter with definite volume and shape.