Across
- 3. well-substantiated, comprehensive, testable explanations of particular aspects of nature
- 10. states that there is no detectable change in the total quantity of matter present when matter converts from one type to another or changes among solid, liquid, or gaseous states
- 12. is the standard volume of a cube
- 15. a mixture with a composition that varies from point to point
- 16. smallest particle of an element that has properties of that element and can enter into a chemical combination
- 19. two or more atoms joined by strong forces called chemical bonds
- 21. the force that gravity exerts on an object
- 23. summarize a vast number of experimental observations and describe or predict some facet of the natural world
- 24. pure substances that can be broken down by chemical changes
- 28. is the study of the composition, properties, and interaction of matter
- 29. has a constant composition
- 30. is anything that occupies space and has mass
- 31. is the common name for a cubic decimeter
- 32. is the domain that contains specialized language used to represent components of the macroscopic and microscopic domains... chemical symbols, chemical formulas, chemical equations
- 35. the path of discovery that leads from question and observation to law or hypothesis to theory, combined with experimental verification of the hypothesis and any necessary modification of the theory
- 36. the measure of the amount of matter in it
- 37. is rigid and possesses a definite shape
- 39. characteristics that distinguish one substance from another
Down
- 1. is the domain of chemistry that is familiar to us, large enough to be sensed directly by human sight or touch
- 2. SI unit is second (s)
- 4. property applies if the property of matter does not depend on the amount of matter present
- 5. the change of one type of matter into another type
- 6. a gaseous state of matter that contains appreciable numbers of electrically charged particles
- 7. aka SI have been used by the U.S. National Institute Of Standards and Technology since 1964
- 8. takes both the shape and volume of its container
- 9. pure substances that cannot be broken down into simpler substances by a chemical change
- 11. property is the mass and volume of a substance
- 13. SI unit is kelvin(K)
- 14. the ratio of the mass of a sample of the substance to its volume
- 17. characteristic of matter that is not associated with a change in its chemical composition
- 18. such as liters, pounds, and centimeters, are standard comparisons for measurements
- 20. mixture also called a solution exhibits uniform composition and appears visually the same throughout
- 22. a tentative explanation of observation that acts as a guide for gathering and checking information
- 25. composed of 2 or more types of matter that can be present in varying amounts and can be separated by physical change
- 26. Study in the science of science, technology, engineer, and math fields
- 27. is the domain that is visited in the imagination, can be visible through a standard optical microscope
- 33. flows and takes the shape of its container
- 34. the measure of the amount of space occupied by an object
- 36. standard unit measurement for this is kilograms (kg)
- 38. in both the SI and the metric system is meter(M)