Crossword puzzle

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Across
  1. 3. The basic unit of matter. (5 letters)
  2. 5. The building blocks of life, composed of amino acids. (7 letters)
  3. 7. complex molecule that carries genetic information. (12 letters)
  4. 8. A complex carbohydrate made up of many sugar molecules. (12 letters)
  5. 9. A type of carbohydrate found in milk. (8 letters)
Down
  1. 1. Anything that occupy space and has mass.
  2. 2. type of organic compound that includes fats, oils, and waxes. (6 letters)
  3. 4. A simple sugar, also known as table sugar. (7 letters)
  4. 6. genetic material of a cell, containing instructions for building and maintaining an organism. (3 letters)