Science, Matter, Energy, & Systems

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Across
  1. 2. of Conservation of Matter, states that whenever matter undergoes a physical or chemical change, no atoms are created or destroyed
  2. 5. forms of an element that have the same atomic number, but different mass numbers due to a varying amount of neutrons
  3. 7. Theory, one of the most important and certain results of science, based on a large body of evidence
  4. 9. Loop, occurs when an output of matter, energy, or information is fed back into the system as an input and it leads to changes in that system
  5. 10. a third building block of some types of matter, it is an atom or group of atoms with a charge (positive or negative)
  6. 11. Law of Thermodynamics, when energy changes from one form to another, it always goes from a more useful form to a less useful form
  7. 13. compound, a carbon based compound
  8. 15. Law, a well-tested and widely accepted description of observations that have been repeated many times in a variety of conditions.
  9. 16. Energy, or heat, is another form of kinetic energy
  10. 17. a measure of acidity that is based on the comparative amounts of hydrogen ions and hydroxide ions in the solution
  11. 18. anything that has mass and takes up space
  12. 20. Law of Thermodynamics, this scientific law states the total amount of energy does not change when energy is converted from one form to another in a physical or chemical change
  13. 23. Review, a process where scientists review each other's work
  14. 24. Tipping Point, when a natural system becomes locked into a positive feedback loop, beyond this point the system can change so drastically that it suffers from severe degradation or collapse
  15. 25. Radiation, is another form of kinetic energy where energy travels as waves
  16. 26. a physical or mathematical representation of a structure or system
Down
  1. 1. a set of components that function and interact in some regular way
  2. 3. is the basic building block of matter
  3. 4. Hypothesis, is a possible and testable answer to a scientific question or explanation of what scientists observe in nature
  4. 6. Methods, or practices, used to advance knowledge and understanding of how the natural world works
  5. 8. combinations of two or more different elements held together in fixed proportions
  6. 12. Energy, is stored and potentially available for use
  7. 14. Change, or chemical reaction, when a chance in chemical composition occurs
  8. 17. Change, when no change in its chemical composition occurs
  9. 18. the second building block of matter, which is a combination of two or more atoms of the same or different elements held together by forces known as chemical bonds
  10. 19. Energy, energy associated with motion
  11. 21. a broad field of study focused on discovering how nature works and using that knowledge to describe what is likely to happen in nature
  12. 22. is a type of matter with a unique set of properties that cannot be broken down into simpler substances by chemical means
  13. 27. information collected to test a hypothesis