1. Processes of Science: - Metric Measurement Volume Temp Length Mass

2. Metric System Basics QUANTITIES There are QUANTITIES that can be measured – WHAT CAN YOU MEASURE? ________ (distance) ________ (space inside) ________ (matter inside) _________ (force of gravity) ___________ (kinetic energy of a material) _______ (space between events)

3. BASICS Base Units – Each quantitiy has a “base unit” which has a known, set size. QuantityBase Unit Volume Liter (l) Mass Gram (g) Length Meter (m)

4. Metric System BASICS POWERS OF 10 (“x10” or “/10”) – ALL units in the metric system divide evenly in to 10 equal parts! Ex: – 1 centimeter = 10 millimeters (mm) – 1 decimeter = 10 centimeter (cm) – 1 meter = 10 decimeters (dm) – It’s EASY to change (convert) from one unit to another, because you just multiply (or divide) by the correct factor of 10 – bigger or smaller. Ex: 10 millimeters = ? centimeters? – 10 mm X 1 cm = 10mm X 1 cm = ? cm 10 mm 10 mm

5. Basics PREFIXES – Prefixes are added to base units to make SMALLER and LARGER size units of measurement for measuring SMALLER and LARGER amounts. SMALLERLARGER Deci- = 1/10 xDeca- = 10x Centi- = 1/100 xHecto- = 100x Milli- = 1/1,000 xKilo- = 1,000x

6. Metric Length The metric base unit unit for Length is the meter. A meter stick is exactly 1 meter (m) long It has 10 decimeters (dm), 100 centimeters (cm), and 1,000 millimeters (mm). 1 dm = ? cm = ? mm Here’s a small section of a meter stick. About how long is it in dm’s, cm’s and mm’s?

7. Length – Add each of the prefixes to the base unit for length. – Then write them and their values. Smaller UnitValueLonger Unit Value (name) (fraction (name) (multiples of a unit) deci meter_____deca meter _____ centi meter_____hecto meter _____ milli meter_____kilo meter _____

8. Length Add each of the prefixes to the base unit for length, then write them and their values: Smaller UnitValueLonger Unit Value (name)(fraction) (name) (multiples of a unit) of a unit) decimeter.1 mdecameter 10 m centimeter.01mhectometer 100 m millimeter.001 mkilometer 1,000 m

9. Reference Points in English System Unit of LengthFraction/Multiple Rough Equals (of a Base Unit) in English millimeter (mm).001 m_________________ centimeter (cm).01 m_________________ decimeter (mm).1 m_________________ meter(m) 1 m decameter (Dm) 10 m_________________ hectometer (hm) 100 m_________________ Kilometer (km) 1,000 m_________________

10. Reference Points in English System Unit of LengthFraction/Multiple Rough Equals (of a Base Unit) in English millimeter (mm).001 mwidth of pencil tip centimeter (cm).01 mpinkie width decimeter (mm).1 mpalm width meter(m) 1 mfloor to doorknob decameter (Dm) 10 mlength of classroom Hectometer (hm) 100 mlength football field Kilometer (km) 1,000 mabout 1 mile (6/10)