I can…. List and describe the general properties of matter. Explain the basic units of metric measurement.

What is it used for? Definition MEASUREMENT Sentence Picture

The General Properties of Matter Matter is anything that has MASS and VOLUME The general properties of matter are: MASS, WEIGHT, VOLUME, and DENSITY

MASS Mass is the amount of MATTER in an object. The mass of an object is always constant. Mass can also be defined as a measure of the INERTIA of an object. Inertia is the resistance of an object to changes in its motion. Greater MASS = Greater INERTIA INERTIA

Mass is measured in units called How do we measure mass? Mass is measured in units called GRAMS

VOLUME CUBIC CENTIMETERS Volume is the amount of SPACE an object occupies. Volume is measured in LITERS and CUBIC CENTIMETERS

DENSITY The properties of MASS and VOLUME describe an object’s density. Density helps you compare different types of matter?

Calculate Density! Density = Mass / Volume If an object has a mass of 20g and a volume of 10cm3, what is the density? 20g / 10cm3 = 2 g/cm3

1cm 1cm 1cm Meter Stick Balance Spring Scale Graduated Cylinder Sand Meter Stick Balance Spring Scale Graduated Cylinder Mass/Volume Thermometer

---The Universal Language of Measurement--- The Metric System ---The Universal Language of Measurement--- Metric System – scientists & engineers use this language to communicate The metric system is often referred to as the International System of Units (abbreviated “SI”) The metric system is based on the number 10 and multiples of 10.

1 x 10 = 10 10 X 10 = 100 10 x 100 = 1,000 The Metric System is based on sets of 10. 1 x 10 = 10 10 X 10 = 100 10 x 100 = 1,000

Length The distance between two points Meter – the basic unit of length in the metric system 1 meter = 1 m

Volume The amount of space an object takes up Liter – is the basic unit of volume in the metric system 1 Liter = 1 L Liters are used to measure the volume of Cubic centimeters – is the metric unit used to measure the volume of liquids solids 1cm = 1 cm3 = 1 mL 1cm 1cm

Mass a measure of the amount of matter in an object Kilogram – the basic unit of mass in the metric system 1 kg = 1000 grams Gram – one thousandth of a kilogram 1 g = 1/1000 kg = 0.001 kg 1000 g = 1 kg Milligram – one thousandth of a gram 1 mg = 1/1000 g = 0.001 g 1000 mg = 1 g

Weight a measure of the attraction between two objects due to gravity Gravity - a force of attraction between two masses. The strength of the gravitational force between two objects depends on the masses of the objects and the distance between them: The greater the mass, the greater the gravitational force. The greater the distance between the two objects, the weaker the gravitational force between them Newton (N) - the basic unit of weight in the metric system.

Mass vs. Weight An object has a universal mass, but may have different weight depending on gravity. The mass of an object does not change. The weight of an object changes as a result of changes in gravity. A pineapple on earth weighs more than on the moon because the earth’s gravity is greater. But the pineapple’s mass always remains the same wherever you go (unless you get hungry and eat it!).

Density a measure of the amount of matter that occupies a unit certain volume Density = mass/volume The density of water = 1.00 g/mL The density of oil = 0.91 g/mL If lighter fluids float on heavier fluids, do you expect water to float on oil?

Temperature a measure of how hot or cold something is Celsius = a unit of temperature in the metric system Water freezes at 0° C. Water boils at 100° C. Normal body temperature is 37° C Room temperature is 21° C.

Temperature (continued) Kelvin = another unit of temperature in the metric system. The lowest possible temperature is 0 Kelvin (-273 ° C). This is Absolute Zero. To convert from Celsius to Kelvin: K = C + 273°

How to convert within the metric system METRIC CONVERSION How to convert within the metric system © Copyright 2003 - 2004.  M. J. Krech. All rights reserved.

The pneumonic: Memorize this! King Henry Died Unexpectedly Drinking Chocolate Milk Memorize      this!

Metric Prefixes Prefix Symbol Meaning kilo- k 1000 thousand hecto- h hundred deka- da 10 ten deci- d 0.1 tenth centi- c 0.01 hundredth milli- m 0.001 thousandth

You need to know… …how to convert within the Metric System. Here’s a good device: On your paper draw a line and add 7 tick marks:

Next: Above the tick marks write the abbreviations for the King Henry pneumonic: k h d u d c m m l g Write the units in the middle under the “U”.

Example #1: Look at the problem. 56 cm = _____ mm Look at the unit that has a number. 56 cm On the device put your pencil on that unit. k h d u d c m km hm dam m dm cm mm

Example #1: Move to new unit, counting jumps and noticing the direction of the jump! k h d u d c m km hm dam m dm cm mm One jump to the right!

Example #1: Move decimal in original number the same # of spaces and in the same direction. 56 cm = _____ mm 56.0. One jump to the right! Move decimal one jump to the right. Add a zero as a placeholder.

Example #1: 56 cm = _____ mm 56cm = 560 mm

Example #2: Look at the problem. 7.25 L = ____ kL Look at the unit that has a number. 7.25 L On the device put your pencil on that unit. k h d u d c m kl hl dal L dl cl ml

Example #2: Move to new unit, counting jumps and noticing the direction of the jump! k h d u d c m kl hl dal L dl cl ml Three jumps to the left!

.007.25 Example #2: Move decimal to the left three jumps. (3) Move decimal in original number the same # of spaces and in the same direction. 7.25 L = ____ kL .007.25 Three jumps to the left! Move decimal to the left three jumps. Add two zeros as placeholders.

Example #2: 7.25 L = ____ kL 7.25 L = .00725 kL

Example #3: Try this problem on your own: 45,000 g = ____mg k h d u d c m kg hg dag g dg cg mg

45,000.000. Example #3: Three jumps to the right! k h d u d c m kg hg dag g dg cg mg Three jumps to the right! 45,000.000.

Example #3: 45,000 g = 45,000,000 mg Three jumps to the right!

Examples #4-8: (4) 35 mm = ____ cm (5) 14,443 L = ____ kL (6) 0.00056 kg = ____ g (7)35.4 L = ____ mL (8)16 mm = ____ km