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Metric System Measuring Data Learning Objectives 1. Identify correct SI units of measurement for length, mass, volume, temperature and area 2. Use metric.

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Presentation on theme: "Metric System Measuring Data Learning Objectives 1. Identify correct SI units of measurement for length, mass, volume, temperature and area 2. Use metric."— Presentation transcript:

1 Metric System Measuring Data Learning Objectives 1. Identify correct SI units of measurement for length, mass, volume, temperature and area 2. Use metric units to measure various data

2 Let’s take some measurements!

3  Scientists use a common measurement system so they can compare their results.  Single standard system of measurement is called the metric system or International System of Units (SI for short)  Only countries that do not use metric system:  United States  Burma (Myanmar)  Liberia  Based on factors of 10 Metric system

4 SI Prefixes

5 Base Units  Mass - the amount of matter that makes up an object  Unit of Measurement: grams (g)  Volume- the amount space occupied by a solid, liquid, or gas  Unit of Measurement: liter (L)  Length - the measurement of something from end to end  Unit of Measurement: meter (m)

6 1 ton dump truck = 1000 kg = 2000 lbs 1 can of soda = 355 mL Shoe size of 9 (women) = 9.85 in = 25.1 cm Shoe size of 9 (men) = in = 26 cm grams (g) liters (L) meters (m) 1 marble = 3 g

7 Kate Hudson doesn’t understand doing college math. Base unit: meters, grams, or Liters

8  Mass - the amount of matter that makes up an object  Unit of Measurement: gram  Tools: triple beam balance or scale  Mass is not the same as weight.  Weight- the gravitational pull of an object  Ex. Gravitational pull on the moon is less, so we weigh less on the moon (6 times less)  Person who weighs 100 lbs on Earth = 16 lbs on Moon Mass

9  Volume- the amount of space occupied by a solid, liquid, or gas  Unit of Measurement: liter (L)  Volume of liquid is measured using a graduate cylinder or a beaker that is marked with a scale in milliliters (mL) Volume

10  For objects with regular shape like a cube or rectangular prism, we can use a formula to calculate its volume.  Volume of a cube = side x side x side  Volume of rect. Prism = length x width x height  For irregular shaped objects like a rock, the water displacement method is used.  Beaker or graduated cylinder is filled with water to specific level, object is placed in beaker.  Change in water level = volume of object.

11 Reading a Graduated Cylinder meniscus What is the volume of the liquid in the graduated cylinder? 11.5 mL

12  Length- the measurement of something from end to end  Under SI system, the base unit for length is meter (m)  Tools: ruler or meter stick, or measuring tape Length diameterlength width radius

13  Area- the inside shape or space of a an object measured in square units  In rectangles and in squares, a simple calculation of length times width will give the number of square units 2 x 2 = 4 m² 4 x 4 = 16 m² Area

14 Temperature – a measure of how warm or cold an object is with respect to some standard ● Fahrenheit (US) after G.D. Fahrenheit 32°F = freezing 212°F = boiling ● Celsius (rest of world) after A. Celsius 0°C = freezing 100°C = boiling Temperature

15 To Convert to Celsius To Convert to Fahrenheit Tº C = Tº F – 32Tº F = 1.8 (Tº C) How do you convert?


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