1. Metric Measurement

2. Types of Metric Measurement Length Length Mass Mass Volume Volume Temperature Temperature Density Density Time Time

3. Length Distance between 2 points Distance between 2 points Basic Unit: meter (m) Basic Unit: meter (m) Equipment: meter sticks, metric rulers Equipment: meter sticks, metric rulers

5. Mass Amount of matter in an object Amount of matter in an object Basic Unit: gram (g) Basic Unit: gram (g) Equipment: Triple Beam Balance Equipment: Triple Beam Balance ** Weight is different than mass! Weight is mass x force of gravity. Mass is constant. Weight can change.

7. Volume Amount of space something takes up. Amount of space something takes up.

8. Volume of liquids Basic Unit: liter (l) Basic Unit: liter (l) Equipment: graduate cylinder Equipment: graduate cylinder *Always read a graduate cylinder at eye level. Meniscus- curved upper surface of a column of liquid.

9. Volume of Liquids-cont. Read the volume using all certain digits and one uncertain digit. Read the volume using all certain digits and one uncertain digit. Certain digits determined from marks on cylinder Certain digits determined from marks on cylinder Uncertain digit is estimated. Uncertain digit is estimated. Volume: 6.62 ml

10. Volume: 52.7 mlVolume: 11.5 ml

11. Volume of Solids Basic Unit: cm 3 Basic Unit: cm 3 Equation: Equation: V = L x W x H V = L x W x H Example: Example: V= 3cm x 3cm x 3cm 3 cm

12. Volume of Irregular Solids You will use a graduate cylinder by water displacement. You will use a graduate cylinder by water displacement.

13. Temperature The measure of how hot or cold something is. The measure of how hot or cold something is. Basic Unit: Kelvin (K) Basic Unit: Kelvin (K) Equipment: Thermometer Equipment: Thermometer Most scientists use Celsius (C°) Most scientists use Celsius (C°)

14. Density Closeness of particles(how spread apart they are) Closeness of particles(how spread apart they are) Mass per unit volume of an object Mass per unit volume of an object Basic Unit: grams per cm cubed (g/cm 3 ) Basic Unit: grams per cm cubed (g/cm 3 ) Equation: D = M / V Equation: D = M / V

15. Time Interval between 2 events. Interval between 2 events. Basic Unit: Seconds (sec) Basic Unit: Seconds (sec) Equipment: Clock or stopwatch Equipment: Clock or stopwatch

16. Metric Conversions Kilo 1000 Hecto 100 Deka 10 Base Unit 1 Centi 0.01 Deci 0.1 Milli 0.001 K H Dk g, l, m d c m Going down: Move the decimal point right for every step you take. Going Up: Move the decimal point left for every step you take.

17. Metric Conversions Kilo Hecto Deka Base Unit Centi Deci Milli K H Dk g,l, m d c m Going down: Move the decimal point right for every step you take. Going Up: Move the decimal point left for every step you take.

18. Converting Metric Units Practice Problem 1: 1000 mg=______g Practice Problem 2: 160 cm=_______ mm Practice Problem 3: 109 g=________kg

19. Converting Metric Units Compare using >,, <, or =. Problem 4: 56 cm  6 m Problem 5: 7 g  698 mg

20. Metric Conversion: Answers Problem 1: 1 g Problem 2: 1,600 mm Problem 3:.109 kg Problem 4: < Problem 5: >

21. Conversion Practice Problems 1) 27 Dkm = ______________ cm 2) 2, 437 cm = ______________ km 3) 14 kg = __________________cg

22. Fri. Practice Problems 1) 65 dg = ______________Dkg 2) 100,000 mm = _______________ km 3) Find the volume of this object. (Each small block is 1 cm long)

23. Practice Problems Answers 1) 0.65 Dg 2) 0.1 km 3. 27 cm 3

24. Scientific Notation A shorter way to write very large & small numbers. Example: 300,000,000 m/s (speed of light) = 3.0 * 10 8 CoefficientExponent To write a number in scientific notation: 1. Put the decimal after the first digit and drop the zeroes 2. Count the number of places from the decimal to the end of the number.

25. Example 1: 123,000,000,000 Coefficient = 1.23 In 123,000,000,000 there are 11 places. Exponent = 11 Answer : 1.23 * 10 11 Example 2: 0.000001 s Coefficient= 1.0 In 0.000001 there are 6 places. Exponent: 6 Answer: 1.0 * 10 -6 s

26. Scientific Notation Practice Problem 1: 1,000 000 km = 1.0 * 10 6 km Practice Problem 2: 5, 600, 000, 000, 000, 000, 000, 000 m/s = 5.6 *10 21 m/s Practice Problem 3:.311 000 000 000 000 L = 3.11 * 10 14 L