A Body of Words Used on a Particular Occasion

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Across
  1. 1. Prefix, suffix, root
  2. 4. Composed of members or elements of different kinds
  3. 5. Hypothesis; T or F (2 words)
  4. 7. Attributes, qualities, or characteristics of something
Down
  1. 2. Addition, multiplication, division, etc.
  2. 3. What is made with an x-axis and y-axis (2 words)
  3. 6. The branch of math concerned with points, lines, surfaces, and solids