Scientific Notation and Significant Figures Webquest

Name:______

Part 1: Scientific Notation

Go to the following website: http://www.aaamath.com/dec71i-dec2sci.html

Click on “Practice.” Complete 10 practice problems and write the problem and answer below

1. ______

2. ______

3. ______

4. ______

5. ______

6. ______

7. ______

8. ______

9. ______

10. ______

Go to the following website: http://www.aaamath.com/B/g6_71jx1.htm

Click on “Practice.” Complete 10 practice problems and write the problem and answer below

1. ______

2. ______

3. ______

4. ______

5. ______

6. ______

7. ______

8. ______9. ______

10. ______

Part 2: Significant Figures and Uncertainty

Go to the following website: http://antoine.frostburg.edu/cgi-bin/senese/tutorials/sigfig/index.cgi

Answer each of the questions and record your answers below. Click “Continue” to move to the next question

1. Which of the following best describes the length of the beetle’s body in the picture to the left?______

2. Give the correct length for the steel pellet for each of the rulers: Left:______Right:______

3. Give the correct length for the electron component on the rulers: Blue:______White:______

4. A temperature of 17.000 °C was recorded with one of the three thermometer to the left. Which one was it? ______

5. Enter the volume readings for the middle and right cylinders, assuming each scale is in mL Middle Cylinder Volume:______mL Right Cylinder Volume:______mL

6. Which of the following quantities can be determined exactly; List all that apply? ______

7. A sample of liquid has a measured volume of 23.01 mL.

a. How many significant figures does the measurement have? ______

b. Suppose the volume measurement was made with a graduated cylinder. How far apart were the scale divisions on the cylinder, in mL?______

c. Which of the digits in the measurement is uncertain? ______

8. Write the number of significant figures for the following:

a. 0.000341 kg = 0.341 g = 341 mg Sig Figs: ______

b. 12 µg = 0.000012 g = 0.000000012 kg Sig Figs:______

c. 0.01062 Mg = 10.61 kg = 10610 g Sig Figs:______

a. ______g Sig Figs:______b. ______g Sig Figs:______

c. ______g Sig Figs:______

a. ______g Sig Figs:____ d. ______g Sig Figs:_____

b. ______g Sig Figs:____ e. ______g Sig Figs:_____

c. ______g Sig Figs:_____ f. ______g Sig Figs:_____

11. Round the following off to the correct number of figures:

a. ______rounded to ______figures is ______

b. ______rounded to ______figures is ______

c. ______rounded to ______figures is ______

12. Give the rounded average for the following numbers

a. ______mL Rounded:______

b. ______mL Rounded:______

c. ______mL Rounded:______