1. The Nature of Science I. The Methods of Science-a _________ is a ______ used to help you ________ something, often something in a ________ _____

2. The Nature of Science I. The Methods of Science meter liter gram meter liter gram

3. The Nature of Science I. The Methods of Science-unit cancellation Multiply the Fractions: What fraction would you multiply by to get 1? 3232

4. The Nature of Science I. The Methods of Science-unit cancellation How many hectoliters in a deciliter? How many microliters in a dekaliter?

5. The Nature of Science I. The Methods of Science Name____________________ How many megameters in 100 centimeters? How many picograms in 1000 kilograms? Directions: For each of the derived units in the column on the left below, list the symbols of all the base units used in combination to make the derived unit:

6. The Nature of Science I. The Methods of Science-unit cancellation How many milliliters in 10 microliters? How many nanometers in 0.0001 Gigameters?

7. The Nature of Science II. Standards of Measurement-the ___________ ______ of _____, or __, is founded on _____ ____ _____, which ______ be ______ _____, and are ___ _______ from _____ _____ SI base units Base quantityNameSymbol lengthmeterm masskilogram kg timeseconds electric currentampereA thermodynamic temperature kelvinK amount of substancemolemol luminous intensitycandelacd http://physics.nist.gov/cuu/Units/units.html

8. The Nature of Science II. Standards of Measurement-other __ _____ are _______ _____, which are ________ by _________ _______ __ _____, and can be _______ _____ into __ ____ _____ NameSymbolQuantity Expression in terms of other SI units Expression in terms of SI base units

9. The Nature of Science II. Standards of Measurement-_______ _____ might be ____________ of _____ ____ ___ ____ ____, or a __________ of ____ ____ _____ and other _______ _____ http://physics.nist.gov/cuu/Units/SIdiagram.html

10. The Nature of Science II. Standards of Measurement Directions: For each of the derived units in the column on the left below, list the letters of all the base units used in combination to make the derived unit: 1. Newton ____ ____ ____ 2. Watt ____ ____ ____ 3. Hertz ____ 4. Coulomb ____ ____ 5. Gray ____ ____ 6. Volt ____ ____ ____ ____ 7. Tesla ____ ____ ____ 8. Ohm ____ ____ ____ ____ a. kilogram b. meter c. second e. ampere d. mole f. Kelvin g. candela Name____________________

11. The Nature of Science II. Standards of Measurement A. Measuring Matter-Mystery Metal Density Lab A. Safety: 1. Hypothesis: 2. Prediction: 3. Gather Data: Always use ordinary caution when using electrically- powered laboratory devices like the electronic top- loading balance. Also use ordinary caution when using laboratory glassware. Be sure to report any breakages immediately and police the area.

12. The Nature of Science II. Standards of Measurement A. Measuring Matter-Mystery Metal Density Lab 3. Gather Data: B. Procedure:

13. The Nature of Science II. Standards of Measurement A. Measuring Matter-Mystery Metal Density Lab 3. Gather Data: B. Procedure:

14. The Nature of Science II. Standards of Measurement A. Measuring Matter-Mystery Metal Density Lab 3. Gather Data: B. Procedure:

15. The Nature of Science II. Standards of Measurement A. Measuring Matter-Mystery Metal Density Lab 4. Analyze Data: