The Measurement of Science

Why do we use the Metric System and SI Most of the world uses it!!! Most of the world uses it!!! –IT’S UNIVERSAL Metric System- system of measurement based on the number 10 Metric System- system of measurement based on the number 10 SI (System international)- adaptation of the metric system regulated by International Bureau of Weights and Measures. SI (System international)- adaptation of the metric system regulated by International Bureau of Weights and Measures.

What does it measure? Length(how long) Length(how long) –The Meter is the basic unit A little longer than a yard A little longer than a yard Meterstick, ruler Meterstick, ruler Mass (how much stuff its made of) Mass (how much stuff its made of) –The Gram is the basic unit A paper clip is about 2 grams A paper clip is about 2 grams scale scale Volume (how much space it takes) Volume (how much space it takes) –The Liter is the basic unit One liter bottle vs 2 liter bottle One liter bottle vs 2 liter bottle Graduated cylinder, beaker Graduated cylinder, beaker

SI Prefixes Prefixes are are used to change units by a factor of 10 Prefixes are are used to change units by a factor of 10 –Kilo = 1000abbreviation - K –Hecto = 100abbreviation - H –Deka = 10abbreviation - D –Deci = 0.1abbreviation - d –Centi = 0.01abbreviation - c –mili = 0.001abbreviation - m Example: if you travel 2 kilometers you have traveled Example: if you travel 2 kilometers you have traveled –2000 meters! Kilo stands for 1000

Using a ruler

Parallex Error The error caused by reading measurements from an angle. The error caused by reading measurements from an angle. Example- reading a speedometer from the passengers side. Example- reading a speedometer from the passengers side.

How do we convert from one measurement to another? How do I remember that? King Henry Doesn’t Usually Drink Chocolate Milk

TRY THIS USING THE STAIRCASE METHOD 1000 mg = ______ g Step 1: Determine if you are going to go up or down the ladder. Step 2: Determine how many steps there are from milligrams to grams. Step 3: Move the decimal point the amount of places that was determined in steps 1 &

TRY THIS USING THE STAIRCASE METHOD 0.15 L = __________ ml 25.6 cm= __________ m 150,000 mg=_________ kg

Using a Graduated Cylinder Measure to the bottom of the curve You should be at eye level with the liquid