Physical Science III

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Across
  1. 3. Characteristics of substances that describe their composition, reactivity, and how the substance changes into different substances. (2 words*)
  2. 6. The amount of matter a substance or object has.
  3. 9. The smallest unit of matter of a substance that retains all the physical and chemical properties of that substance; consists of a single atom or a group of atoms bonded together.
  4. 10. A change of a substance from one form to another without a change in its chemical properties. (2 words*)
  5. 11. Anything that takes up space and has mass.
  6. 14. The temperature at which a solid changes to a liquid. For ice at sea level this is 0°C (32°F). (2 words*)
  7. 16. The temperature at which a liquid changes to a gas. For water at sea level this is 100°C (212°F). (2 words*)
Down
  1. 1. Process by which substances are changed into different substances with different properties. (2 words*)
  2. 2. The law of ___ of matter and energy states that matter and energy cannot be created or destroyed, they change form.
  3. 4. The form matter can take (e.g., solid, liquid, gas). (3 words*)
  4. 5. A measure of the force of gravity on an object.
  5. 7. The amount of space an object or substance occupies.
  6. 8. A type of mixture in which different parts can be easily distinguished.
  7. 10. A measure of the acidity or alkalinity of a solution based on a scale from zero to fourteen.
  8. 12. A measure of how hot or cold a substance is; a measure of the average kinetic energy of the particles of a substance.
  9. 13. A type of mixture in which the different parts are blended evenly so that the mixture is the same throughout.
  10. 15. The center region of an atom where protons and neutrons are located.