1. USING MATH TO SUPPORT SCIENTIFIC CLAIMS

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

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

4. 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 = 10 -1 m Centimeter: 1 cm = 10 -2 m Millimeter: 1 mm = 10 -3 m Micrometer: 1 µm = 10 -6 m Nanometer: 1 nm = 10 -9 m Picometer: 1 pm = 10 -12 m

5. 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 = 10 -6 seconds How many seconds are in one microsecond?

6. LETS TRY ANOTHER… How many centiliters are in one liter? Remember: 1 cl = 10 -2 l

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

8. TRY THIS! How many nanometers are in three hectometers? 1 nm = 10 -9 meters 1 hm = 10 2 meters

9. SCIENTISTS SHOW THEIR RESULTS USING GRAPHS AND DATA TABLES

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

11. 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.

12. 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.

13. 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.

14. 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.