Unit 1 – LESSON 1 “Describing Matter”

MATTER everything that has mass (the amount of “matter” that makes up an object), volume (the amount of “space” an object takes up), weight (the amount of “gravity” pushing / pulling on an object) and inertia (resist change in motion) NO! NO! YES! YES!

METRIC SYSTEM (SI)  a standard system of measurement of matter used by all scientists based on Power of 10 increments

METRIC – PLACE VALUE POSITIONS: What’s beyond “milli- ” (mm/mL/mg)? SMALLER METRIC PREFIXES: 100 = meter (m) = 1 10-1 = deci- (d) = 0.1 10-2 = centi- (c) = 0.01 10-3 = milli- (m) = 0.001 10-6 = micro- (u) = 0.000001 10-9 = nano- (n) = 0.000000001 10-12 = pico- (p) = 0.000000000001 http://htwins.net/scale2/ m d- c- m- X u- n- p-

METRIC – PLACE VALUE POSITIONS: What’s beyond “kilo- ” (km/kL/kg)? LARGER METRIC PREFIXES: 100 = meter (m) = 1 101 = deca- (da) = 10 102 = hecto- (h) = 100 103 = kilo- (m) = 1,000 106 = mega- (M) = 1,000,000 109 = giga- (G) = 1,000,000,000 1012 = tera- (T) = 1,000,000,000,000 http://htwins.net/scale2/ T- X G- M- k- h- da- m

MASS  is the measure of an object’s RESISTANCE to MOTION and remains CONSTANT

MASS versus WEIGHT: DEFINITION: UNIT of MEASUREMENT: INSTRUMENT: MASS  amount of MATTER that makes up an object WEIGHT  amt of FORCE pushing down on an object UNIT of MEASUREMENT: MASS  is measured in GRAMS (g) WEIGHT  is measured in NEWTONS (N) INSTRUMENT: MASS  is measured using a “centered” BALANCE WEIGHT  is measured using a SPRING SCALE

MASS versus WEIGHT: (continued) CHANGING LOCATION: MASS  will STAY the SAME on various planet location WEIGHT  DOES CHANGE on varying planetary locations due to their different amounts of GRAVITY

VOLUME  is the measure of how much SPACE an object/liquid takes up

DENSITY  is the amount of MASS packed into a given amount of VOLUME

THE END FOR NOW… UNIT 1 (LESSON 1)

COMING SOON “PROPERTIES of MATTER” UNIT 1 (Lesson 2)