crossword 1

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Across
  1. 2. Burning with a sudden and sparkling combustion, as niter; hence, slightly explosive; liable to snap and crackle when heated, as salt
  2. 4. Mechanically extendible ladder; used on a fire truck
  3. 6. Represent as less significant or important
  4. 8. Learn belatedly; find out about something after it happened
  5. 9. Annual and perennial grasses of savannas and upland grasslands
Down
  1. 1. An indicator of stock market prices; based on the share values of 30 blue-chip stocks listed on the New York Stock Exchange
  2. 3. (military) a war measure that isolates some area of importance to the enemy
  3. 5. In a malignant manner, as of a tumor that spreads
  4. 7. (mathematics) the branch of pure mathematics that deals only with the properties of a figure X that hold for every figure into which X can be transformed with a one-to-one correspondence that is continuous in both directions