Scientific Crossword Puzzle

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Across
  1. 3. the branch of science that deals with the identification of the substances of which matter is composed
  2. 4. the systematic study of the structure and behavior of the physical and natural world through observation, experimentation, and the testing of theories against the evidence obtained.
  3. 7. a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
  4. 9. the branch of science that deals with celestial objects, space, and the physical universe as a whole.
  5. 10. a coherent, typically large body of matter with no definite shape.
  6. 12. the action or process of observing something or someone carefully or in order to gain information.
  7. 16. an arithmetical multiplier for converting a quantity expressed in one set of units into an equivalent expressed in another.
  8. 18. the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great.
  9. 21. a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world
  10. 22. the quality or state of being correct or precise.
  11. 23. relating to things perceived through the senses as opposed to the mind
  12. 24. mass of a unit volume of a material substance
  13. 26. a three-dimensional representation of a person or thing or of a proposed structure, typically on a smaller scale than the original.
Down
  1. 1. the measurement or extent of something from end to end; the greater of two or the greatest of three dimensions of a body.
  2. 2. the quality, condition, or fact of being exact and accurate.
  3. 5. an experiment in which all the variable factors in an experimental group and a comparison control group are kept the same except for one variable factor in the experimental group that is changed or altered
  4. 6. The variable that might change because of what the scientist changes
  5. 8. In a process that is intended to regulate some condition, a quantity or a condition that the control alters to initiate a change in the value of the regulated condition.
  6. 11. machinery and equipment developed from the application of scientific knowledge.
  7. 13. statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena.
  8. 14. the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
  9. 15. a system of writing numbers as the product of a number between 1 and 10 and a power of 10
  10. 17. each of the digits of a number that are used to express it to the required degree of accuracy, starting from the first nonzero digit.
  11. 19. the branch of science concerned with the nature and properties of matter and energy.
  12. 20. Method
  13. 25. the science that deals with the earth's physical structure and substance, its history, and the processes that act on it.