USING MATH TO SUPPORT SCIENTIFIC CLAIMS. WHY IS THE METRIC SYSTEM IMPORTANT? The metric system is a universal measurement system. It is used to perform.

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Presentation transcript:

USING MATH TO SUPPORT SCIENTIFIC CLAIMS

WHY IS THE METRIC SYSTEM IMPORTANT? The metric system is a universal measurement system. It is used to perform measurements around the world

WHAT ARE SOME OF THE BASIC UNITS OF MEASUREMENT? Mass: gram (g) Volume: Liter (l) Length: meter (m) Time: second (s) Temperature: kelvin (k)

USING THE METER AS AN EXAMPLE, BELOW ARE PREFIXES USED TO SHOW THE RELATIVE SIZE OF MEASUREMENT UNITS. Megameter: 1 Mm = 10 6 m Kilometer: 1 km = 10 3 m Hectometer: 1 hm = 10 2 m Dekameter: 1 dam = 10 1 m Decimeter: 1 dm = m Centimeter: 1 cm = m Millimeter: 1 mm = m Micrometer: 1 µm = m Nanometer: 1 nm = m Picometer: 1 pm = m

WHAT DO THE PREFIXES ACTUALLY MEAN? Example 1: Hectometer: 1 hm = 10 2 m How many meters are in one hectometer? Example 2: Microseconds: 1 µs = seconds How many seconds are in one microsecond?

LETS TRY ANOTHER… How many centiliters are in one liter? Remember: 1 cl = l

HOW MANY KILOGRAMS ARE IN ONE GRAM? Remember: 1 kg = 10 3 g

TRY THIS! How many nanometers are in three hectometers? 1 nm = meters 1 hm = 10 2 meters

SCIENTISTS SHOW THEIR RESULTS USING GRAPHS AND DATA TABLES

PIE CHART/GRAPH: Demonstrates proportions with sections relative to quantities. Must label: Title, percentages, and a key stating what the portions represent.

BAR GRAPH: Used for discontinuous data. You can use vertical or horizontal bars showing proportional values. Must label: Title, x axis, y axis, and show evenly spaced increments.

LINE GRAPH A graph that displays information as a series of data points connected by lines. Shows continuity. Must label: Title, x and y axis, and show evenly spaced increments.

SCATTER GRAPH Shows a correlation. Data is shown as many points with a “best fit line” through the points. Must label: Title, x and y axis, and show a best fit line.

WHAT IS A DATA TABLE? Rows and columns arranged to display data Basic characteristics: Titles for rows and columns, A title for the table explaining it’s content, and clearly marked rows and columns.