1. 8 th grade Physical Science Unit 1 Lesson 3

2. Class Connect Structure  All Science class connect sessions will be at 3PM EST (2PM CST)  Weekly Overview Lesson on Monday or Tuesday  Targeted small group sessions for the remainder of the week  If you do not pass your assessment for a lesson you will be required to attend a small group session.

3. Science Journal  Each student needs to have a Science Journal  I recommend having a hard copy instead of a virtual journal. You will need to able to take you journals away from your computer to make observations  All entries must be dated  All entries should also have a topic line  Any type of note book will work, but you need about 100 pages.

4. Lesson 3 and 4 Measurement and International System (Metric System)  Measuring different things requires different tools  Volume - liters  Mass - grams  Length - meters  Temperature - Celsius or kelvin

5. SI - International System of Units 1. Based on multiples of 10 2. Common metric prefixes : a. mega- (M) 1 000 000 x b. kilo- (k)1 000 x c. hecto- (h) 100 x d. deka- (da) 10 x e. deci- (d)0.1 x(1/10) f. centi- (c) 0.01 x (1/100) g. milli- (m) 0.001 x (1/1000) h. micro- (u) 0.000 000 001 x

6. Length American standard 1 mile = 1760 yards = (5280 feet) 1 yard = 3 feet 1 foot = 12 inches 1 mil = 1 / 1,000 inch Metric standard 1 kilometer = 1000 meters 1 meter = 10 decimeters 1 decimeter = 10 centimeters (  1 meter = 100 centimeters) 1 centimeter = 10 millimeters Conversion: 1 inch is defined to be exactly 2.54 cm in July, 1959. (before this, the UK inch measures 2.53998 cm, while the US inch was 2.540005 cm)

7. Volume for liquid American Standard 1 gallon = 4 quarts 1 quart = 2 pints 1 pint = 16 fluid ounces (also 1 pint = 2 cups 1 cup = 16 Tablespoons 1 TBS = 3 teaspoons ) Metric Standard 1 liter = 1000 milliliters 1 milliliter = 1 c.c. Conversion: 1 gallon = 3.785 411 784 liters  3.8 liters 1 gallon = 231 cubic inches

8. Weight American Standard 1 ton = 2000 pounds 1 pound = 16 ounces Metric Standard 1 (metric) tonne = 1000 kilograms 1 kilogram = 1000 grams 1 gram = 1000 milligrams Conversion: 1 pound = 0.453 592 37 kilograms hence 1 kilogram  2.2 pounds

9. Weight American Standard 1 ton = 2000 pounds 1 pound = 16 ounces Metric Standard 1 (metric) tonne = 1000 kilograms 1 kilogram = 1000 grams 1 gram = 1000 milligrams Conversion: 1 pound = 0.453 592 37 kilograms hence 1 kilogram  2.2 pounds

10. Temperature American standard Fahrenheit 32 ºF = freezing 212 ºF = boiling (for pure water) Metric Standard Celsius 0 ºC = freezing 100 ºC = boiling (for pure water) Conversion: F = 1.8 × C + 32C = (F – 32)/1.8

16. Thanks for coming  If you do not have any questions you are free to go.  Questions