Across
- 5. explains something in the world in a workable way
- 8. the substance we end with after a reaction
- 10. substance that dissolves in water & accepts hydrogen
- 11. pure substance made of 2 or more elements
- 12. substance used to block a substrate
- 14. pure substances made of only one kind of atom
- 15. the immaterial stuff that gets things done
- 16. explains a set of observations
- 18. the measure of the speed that particles move
- 20. the physical stuff that make up the universe
- 23. idea that the environment is fragile
- 24. describes how phenomena relate to each other
Down
- 1. study of ethical situations in biology
- 2. molecule that binds to enzyme
- 3. a way to test a hypothesis
- 4. basic building block of matter
- 6. stored chemical energy that holds atoms together
- 7. the study of life
- 9. the dispersal of energy
- 13. the smallest part of a covalent compound
- 17. simple, testable statement
- 19. a class of catalyst that naturally occurs
- 21. the perspective that a person uses to view
- 22. substance that dissolves in water & gives hydrogen