Unit 1 vocabulary

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Across
  1. 2. A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  2. 4. The degree of compactness of a substance.
  3. 5. ___ is anything that has mass and takes up space.
  4. 8. Each of more than one hundred substances that cannot be chemically inter converted or broken down into simpler substances and are primary constituents of matter. Each element is distinguished by its atomic number, i.e. the number of protons in the nuclei of its atoms.
  5. 11. A tabular array of the chemical elements organized by atomic number.
  6. 12. A substance that flows freely but is of constant volume, having a consistency like that of water or oil..
  7. 13. An attribute, quality, or characteristic of something.
  8. 17. The conversion of a vapor or gas to a liquid.
  9. 18. The SI unit of mass is the ______
  10. 20. The basic unit of a chemical element.
  11. 21. A substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid).
Down
  1. 1. The degree or intensity of heat present in a substance or object.
  2. 3. A __________ is a single kind of matter that is pure, meaning that it has a specific composition and properties.
  3. 6. Continuous physical force exerted on or against an object by something in contact with it.
  4. 7. A characteristic of a substance that may be observed when it participates in a chemical reaction.
  5. 9. Relating to the body as opposed to the mind.
  6. 10. The branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
  7. 14. Firm and stable in shape; not liquid or fluid.
  8. 15. The _____ of an object is the measurement of the force of gravity on the object.
  9. 16. The amount of space that matter occupies is called its ___.
  10. 19. The ___ of an object is the measurement of the amount of matter in the object.