1. International System of Units (SI) the metric system Based on the number 10 Ex. 10 millimeter = 1centimeter =.1 decimeter

2. Length – the distance between two points Equipment – ruler Base unit – meter (m) Thickness of a penny = 1.5 mm or 0.15cm Diameter of a penny = 19.2 mm or 1.92cm

3. What is volume? Volume is the amount of space that matter occupies

4. MeasurementDefinitionEquipmentUnits Solid Volume Space an object occupies Liquid Volume Space a liquid occupies

5. Volume Liquid Use a graduated cylinder or beaker Base unit is a liter Solid Rectangular solids: Volume = Length x width x height Ruler V = l x w x h cm 3

6. Volume of an irregularly shaped solid (displacement) 1.Measure the volume of water in a graduated cylinder 2.Add the object 3.Measure the new water level 4.Subtract the first volume from the second to get the volume of the rock. 75 mL -50 mL 25 mL = volume of the rock

7. Density The amount of matter in a given volume Density = mass (g) volume ( cm 3 ) Equipment: Graduated cylinder or ruler

8. The units for density could be g/cm 3 or g/ml Density can be used to identify substances. The density of water = 1g/cm 3 The density of oil =.9g/cm 3 The density of corn syrup= 1.5 g/cm 3 What would happen if you put all 3 in a cylinder?

10. Formula for D = m/v (mass/volume) m= D x V V=m/D Find the density of a substance with a mass of 5 kg and a volume of 43 m 3. D = m/V = 5kg/43m 3 =.12 kg/m 3

11. MeasurementDefinitionEquipmentUnits lengthDistance between 2 pointsruler meters Solid VolumeSpace an object occupiesRulercm 3 Liquid VolumeSpace a liquid occupiesGraduated cylinderml MassMatterTriple beam balanceg temperature Average kinetic energy of the particles thermometer oCoC forceA push or pullspring scaleN

12. 0.015 km = _____ m7000 mg = _______ hg 2 L = ______ cL 10 m = ____cm = _____mm Meter Liter Gram 15 0.07 200 1000 10,000

13. 870,000 in scientific notation 1.Count how many places you need to move the decimal to make a number that is less than 10 but greater than or equal to 1. 870,000 = 8.7 x 10 5 2. The number of places you moved the decimal becomes the exponent.

14. 478, 000, 000, 000 = 4.78 x 10 11 0.000000000000249 = 2.49 x 10 -13