3. You wouldn’t use kilometers to measure the width of a penny!

5. Unit: Unit: _______ Definition :_____________________________ _______________________________________ Tools: Tools: ___________________ Time is always the _________________ because it _______________________ and the scientist decides the interval.

6. Unit: Unit: seconds (this is the standard unit however there are others). Definition: Definition: how long it takes for something to happen. Tools: Tools: stopwatch or clock Time is always the independent variable because it does not depend on anything and the scientist decides the interval.

7. Unit: Unit: ______________________ Definition: Definition:_______________ _______________________ Tools: Tools: ____________________

8. Unit: Unit: meter, centimeter, kilometer Definition: Definition: how far something is from one point to another. Tools: Tools: ruler, measuring tape

9. Time Sometimes these units aren’t enough!!! So…we add _____________to our units. Distance ___________ _ __________

10. Time Sometimes these units aren’t enough!!! Sooooo…we add prefixes to our units. Distance hour, minute inch, mile seconds meters

11. ______ Hecto 100 Deka- _____ Basic Unit (g, m, L) ______ 0.1 ______ Milli- 0.001 K____ H____ D__ B_ D_______ C________ M____ Identify the Basic Unit for each letter below: g=_________ m=________ L=_________

12. Kilo- 1000 Hecto- 100 Deka- 10 Basic Unit (g, m, L) Deci- 0.1 Centi- 0.01 Milli- 0.001 K H D B D C M King Henry Died By Drinking Chocolate Milk Identify the Basic Unit for each letter below: g=__Grams_ m=_meters_ L=_Liters_

13. Let’s Practice! The length of ten city blocks___________ Across the science classroom________ The length of your foot_________ The thickness of a dime_________ Determine the best measurement for:

14. Practicing Conversions 36 cm = ____ m 28 mL = ____ L 5.25 m = ____ mm 480 mg = ____ g

15. ____ _____ ______ It is often easier to transform data into a ____________ to get a _____________________. Definition:___________________ ___________________________ ___________________________

16. Pie Bar Line It is often easier to transform data into a GRAPH to get a visual picture. Definition:. Definition: A model that helps us to picture the relationship between two variables.

17. Consistent Data What does it mean to be consistent? Which Group has the most consistent data?

18. Precision vs. Accuracy _________________ refers to how close a measurement is to the true value. ________________ describes how close together repeated measurements are. Goes along with “most consistent”

19. Accuracy vs. Precision Accuracy refers to how close a measurement is to the true value. Precision describes how close together repeated measurements are. –Goes along with “most consistent”