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Students know how to… ◦ convert between °C - °K ◦ Analyze situations/solve problems combining and applying concepts.
In science we use measurements to observe. Thus we need to assign the correct units in the numerical value to know what we are talking about.
Most commonly used Units by chemists Length – meter (m) Mass – kilogram (Kg) Temp. – Kelvin (K) Time – second (sec) Amount of a substance- mole (mol) Volume – cubic centimeter (cm 3 )
K H D M D C M
The space occupied by any sample of matter. ◦ Liter (L) is most commonly used measurement. ◦ Not part of the SI Unit Volume = length x width x height
The measurement of the quantity of matter Weight is different. ◦ A force that measures the pull on a given mass by gravity. Kg = mass of 1 L of liquid water at 4° C.
Measured in Kelvin. Comparison of Kevin to Celsius scales.
The Metric System The scientific system of measurement
Which weighs more, a pound of feathers, or a pound of bricks?
International System of Units 3.2
What Is Density? (contd.)
Why is a standard measurement system important?
Measuring with SI Units
Measuring Matter 6 Beta Measuring Matter Which weighs more, a pound of feathers or a pound of sand? Which weighs more, a pound of feathers or a.
Unit Conversion Review
Measuring Matter Chapter 2 Section 2.
Scientific Measurements.. US Customary Units vs. The Metric System In the United States our units of measurement is based on the old English units. For.
Unit 2 Measurement. QuestionAnswer 1.What is a standard? 1.A standard is an exact quantity against which comparisons can be made. The “foot” was based.
Section 1-4 Pgs Measurement and Safety IN: How do scientists measure things? IN: How do scientists measure things?
Measurement Basics Physical Science. Why is it important to make accurate and precise measurements? Accuracy is the correctness of a measurement. If your.
Metric Review. International System of Units (SI) Base of 10 1 meter = 100 centimeters=1000 millimeters Standard Units: -Mass = gram (g) -Length = meter.
Slide 1 of 33 © Copyright Pearson Prentice Hall The International System of Units > 3.2 Measuring with SI Units The five SI base units commonly used by.
Standard measure of a quantity Examples › Length = Meter (m) › Volume = Liter (L) › Mass = Grams (g) › Temperature = Celcius (°C)
Measurement The International System of Units (SI) is the standard system used around the world.
Chapter 2 – Section 2 Suggested Reading Pages 33-42
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