Warm Up 63 cm 6 m 5 g 508 mg 1,500mL 1.5 L 536 cm 53.6 dm 43 mg 5 g Greater than, Less than or equal (<, >, or =) 63 cm 6 m 5 g 508 mg 1,500mL 1.5 L 536 cm 53.6 dm 43 mg 5 g 3.6 m 36 cm

Warm Up

The Metric System

The Metric System and SI Units Scientists use International System (SI) units for measurements of -distance -volume -mass -temperature The International System is based on multiples of ten and the metric system of measurement.

The Metric System and SI Units

The Metric System and SI Units

Symbols in Metrics Distance: -km, hm, dam, m, dm, cm, mm, μm Volume: -kL, hL, daL, l, dL, cL, mL, μL Mass: -kg, hg, dag, g, dg, cg, mg, μg

Let’s Practice Using SI Units Width of a door frame- Length of GA 400- A large paperclip- Life Science Text Book- Half a bottle of Coke- The amount of shampoo in a bottle-

A Special Situation Volume can be measured with each of the following units: 1ml = 1cm3 = 1cc

Temperature 30° is hot. 20° is nice. 10° is chilly. 0° is ice. Temperature is measured in Celsius (C°). 30° is hot. 20° is nice. 10° is chilly. 0° is ice.

Let’s Review Metric Conversions

Changing Metric Units

k h da d c m

k h da d c m 8m = _____cm

k h da m d c 8m = _____cm

km h da m d c 8m = _____cm

km hm da m d c 8m = _____cm

km hm dam m d c 8m = _____cm

km hm dam m dm c 8m = _____cm

km hm dam m dm cm 8m = _____cm

km hm dam m dm cm mm 8m = _____cm

km hm dam m dm cm mm 8 8m = _____cm

km hm dam m dm cm mm 8 8m = _____cm

km hm dam m dm cm mm 8. 8m = _____cm

km hm dam m dm cm mm 8. 80. 8m = _____cm

km hm dam m dm cm mm 8 80 800. 8m = _____cm

km hm dam m dm cm mm 8 80 800. 8m = _____cm

km hm dam m dm cm mm 8 80 800. 8m = 800 cm

Your Turn

The Microscope

Compound Light Microscope Magnifies objects too small to see easily with the naked eye. Main Parts Tube w/ lenses Stage Light source

Total Magnification Power Multiply the magnification of the eye-piece by the highest objective lens (Eye Piece X Objective Lens). Ex: If the eye piece on a microscope says “5x” and the high power objective lens says “50”, what is the total magnifying power of the microscope? 250x

Field of View Field of view is created as light is focused up on the stage from the light source. Adjust by turning the diaphragm to allow light through to the stage. Images appear blurred when the resolving power of the lens is not good.