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Across 7. a method that typically begins with an observation and question that the scientist will research; next, the scientist typically performs some research about the topic and then devises a hypothesis; then, the scientist will test the hypothesis by performing an experiment; finally, the scientist analyzes the results of the experiment and draws a conclusion (2 Words) 10. units that can be calculated using algebraic combinations of the fundamental units (2 Words) 12. the ratio of the uncertainty of a measurement to the measured value, expressed as a percentage (2 Words) 14. system of measurement used in the United States; includes units of measurement such as feet, gallons, and pounds (2 Words) 16. a description, using concise language or a mathematical formula, a generalized pattern in nature that is supported by scientific evidence and repeated experiments 17. the SI unit for time, abbreviated (s) 18. express the precision of a measuring tool used to measure a value (2 Words) 20. the degree to which a measured value agrees with correct value for that measurement 21. refers to the size of a quantity as it relates to a power of 10 (3 Words) 23. the study of objects moving at speeds greater than about 1% of the speed of light, or of objects being affected by a strong gravitational field 24. the SI unit for mass, abbreviated (kg) 26. the science concerned with describing the interactions of energy, matter, space, and time; it is especially interested in what fundamental mechanisms underlie every phenomenon 27. a system in which values can be calculated in factors of 10 (2 Words) 28. a standard used for expressing and comparing measurements

Down 1. the study of objects smaller than can be seen with a microscope (2 Words) 2. units that can only be expressed relative to the procedure used to measure them (2 Words) 3. a quantitative measure of how much your measured values deviate from a standard or expected value 4. the percent uncertainty in a quantity calculated by multiplication or division is the sum of the percent uncertainties in the items used to make the calculation (4 Words) 5. the study of relativity, quantum mechanics, or both (2 Words) 6. the degree to which repeated measurements agree with each other 8. a ratio expressing how many of one unit are equal to another unit (2 Words) 9. an explanation for patterns in nature that is supported by scientific evidence and verified multiple times by various groups of researchers 11. a characteristic or property of an object that can be measured or calculated from other measurements (2 Words) 13. physics that was developed from the Renaissance to the end of the 19th century (2 Words) 15. the international system of units that scientists in most countries have agreed to use; includes units such as meters, liters, and grams (2 Words) 19. an estimated value based on prior experience and reasoning 22. representation of something that is often too difficult (or impossible) to display directly 25. the SI unit for length, abbreviated (m)