The Mech-Mind Crossword

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Across
  1. 3. The manufacturing process of pouring liquid material into a hollow mould to solidify. (7 Letters)
  2. 4. The SI derived unit of force, named after the man who famously watched an apple fall. (6 Letters)
  3. 6. The most abundant, lightweight, and corrosion-resistant metal in the Earth's crust. (9 Letters)
  4. 7. A simple machine consisting of a toothed wheel that transmits rotational force. (4 Letters)
Down
  1. 1. The fundamental "mother of all machine tools" used for turning cylindrical workpieces. (5 Letters)
  2. 2. The measure of a fluid's resistance to gradual deformation by shear stress (how "thick" a liquid is). (9 Letters)
  3. 5. A thermodynamic cycle that sets the maximum possible efficiency for a heat engine. (6 Letters)