Measurement In science, the Metric system is used. It is a universal measurement system based on multiples of 10. This makes conversions from one unit.

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Presentation transcript:

Measurement In science, the Metric system is used. It is a universal measurement system based on multiples of 10. This makes conversions from one unit to another much easier.

Measurement Musts Use the right basic unit Measure with the right accuracy Estimate one place ALWAYS write your units

METRIC M K H Dk BASE d c m u M= MegaMeterd= Deci K= KiloLiterc= Centi H=HectoGramm= Milli Dk= Dekau= Micro

Basic Units Volume = liters (L) Length = meters (m) Mass = grams (g)

Accuracy Measure using the lab equipment that gives you the most accuracy – Ex: beaker vs. graduated cylinder

Estimating Always estimate one place past the accuracy of a measuring device. Ex: The smallest unit on this ruler is millimeters (mm). We would measure to the millimeter, and estimate to the 1/10ths place

How long (cm)?

How long (cm)?

Estimate for more accuracy

How long (cm)?

How long (cm)?

Graduated Cylinders Measure to the bottom of the meniscus

How much?

How much? 50 * Read the bottom of the meniscus * Estimate one place 40 30

Conversion of Temperatures Fahrenheit to Celsius: C=(F-32)X 5/9 Celsius to Fahrenheit: F=Cx9/5+32