METRIC SYSTEM The metera little longer than a
- Slides: 12
METRIC SYSTEM The meter—a little longer than a yard—is the basis for the metric system
We can increase or decrease the value of a base unit by using a prefix 10 km (This is now the same as 10, 000 m) SI Units are easier to remember than English units because they are based on multiples of 10 – Powers of 10 Short Film (1977)
Si units are easy because they are based on multiples of 10 Common SI Prefixes Prefix giga- Symbol G NOTES Meaning 1, 000, 000 or 109 mega- M 1, 000 or 106 kilo- k decicenti- d c 1000 or 103 0. 1 or 10 -1 milli- m 0. 01 or 10 -2 0. 001 or 10 -3
Si units are easy because they are based on multiples of 10 Common SI Prefixes Prefix Symbol NOTES Meaning 0. 000001 or 10 -6 micro- nano- n 0. 00001 or 10 -9 pico- p 0. 0000001 or 10 -12
Write a summary • What is the Metric System? • Why is this system easier to use in science than other systems (for ex. Like the English system which uses inches, feet, etc. )?
What if you have meters but need to convert to km? Or cm? How would you do that? USE THE STAIRCASE METHOD FOR CONVERTING METRIC UNITS
NOTES kilo- If you go down the stairway then move the decimal to the right! hectodeca- base deci. If you go up the stairway then move the decimal to the left! centimilli-
Your Turn! • Fill in the ladder with the remaining prefixes. – Giga – Mega – Micro – Nano – Pico *Bonus to add: Deca: 10 Hecto: 100 • This means you may need to add more steps at the top or bottom • Remember each step represents 1 power of 10 (or an additional zero either to the left or right depending on which direction)
Giga. If you go down the stairway then move the decimal to the right! Mega- kilohectodecabase decicentimilli. If you go up the stairway then move the decimal to the left! n
What are the following conversions? 102. 2 mm = ___ m 0. 1022 m 0. 594 Mg = ____ g 594000 g 35956. 12 ng = ____g 0. 00003595612 g
Practice Let’s work on the Metric Mania Worksheet. We are going to sort the class into 2 groups: • Awesome A’s • Brilliant B’s If your group is called, stand up.
