Science Crossword

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Across
  1. 3. The study of the structure, function, and behavior of the natural world through observation and experiment
  2. 6. This field of science studies celestial objects and phenomena such as stars, galaxies, black holes, and the universe as a whole, using principles of physics and astronomy
  3. 7. The study of the physical and chemical properties of matter and the changes it undergoes
Down
  1. 1. A branch of physics that deals with the behavior of light and its interaction with matter
  2. 2. The study of living organisms and their interactions with their environment
  3. 4. The central part of an atom, containing protons and neutrons
  4. 5. The smallest unit of a chemical element that retains the chemical properties of that element